Hello, I am working with IMS (ZTE vendor), I want to use SBC in front of IMS network for some security policy (Hide Topology), I used SEMS as SBC in this regards, (like what we have in IMS/SEMS in kamailio by Mr Carsten Bock). When the Sebscriber want to register, The Register request received by sems and the forward to IMS(ZTE), But the "503 Service Unavailable" is received from IMS. I enable "enable_reg_caching=yes" in register.sbcprofile''s configuration file in sems. If i use kamailio, instead of SEMS, The Registration request is done successfully.In Kamailio i just forward the Register request to IMS.like this: route { if (is_method("REGISTER")) { $du = "sip:172.23.1.1:5080"; route(RELAY); } } Let me know do the issue is from myself or from IMS(ZTE)? In the fillowing, I paste all SIP Register signalling. First in kamailio, second with SEMS. ================Kamailio================== 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5e58 -> 0x4193!] UDP, length 787 E../....@.]...............^XREGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- Max-Forwards: 69 Contact: sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Content-Length: 0
08:20:53.114198 IP (tos 0x0, ttl 255, id 25839, offset 0, flags [none], proto UDP (17), length 685) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 657 E...d......$..............l.SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipTR9m3KdZ*3-5-16648*daei.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com",nonce="f42b36e39bdbb33b51599924b304445a",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:20:53.120142 IP (tos 0x10, ttl 64, id 48874, offset 0, flags [none], proto UDP (17), length 1137) 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5f9a -> 0xcc62!] UDP, length 1109 E..q....@.\V.............]_.REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- Max-Forwards: 69 Contact: sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP To: sip:+985137054518@r-kh.com;transport=UDP From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com",nonce="f42b36e39bdbb33b51599924b304445a",uri="sip:r-kh.com;transport=UDP",response="9469852a06c01efeabf3a7a5dd1a9f3b",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" Allow-Events: presence, kpml Content-Length: 0
08:20:53.203871 IP (tos 0x0, ttl 255, id 25842, offset 0, flags [none], proto UDP (17), length 1118) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 1090 E..^d......p.............J.5SIP/2.0 200 OK Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipjRydzgMa*3-5-16648*daej.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Contact: sip:+985137054518@192.168.122.1:64407;transport=UDP;rinstance=e664e178fc12691e;expires=1800 Contact: sip:ZTEAGCF000f425704be720000@agcf2.r-kh.com:5079;appid=2-7;UserRegInfo=002-02-00-0b80-04-172.30.48.143;BACaddr=172.30.48.143;BACport=2944;expires=1800;+sip.instance="urn:uuid:172.30.35.41-000";reg-id=1 P-Associated-URI: tel:+985137054518 P-Associated-URI: sip:+985137054518@r-kh.com Date: Sat, 25 Aug 2018 12:25:17 GMT Authentication-Info: nextnonce="00cfbd64b136c12a4e27b67fd28d19fb",qop=auth,rspauth="91ca956c5eb6ee9f1934e2e770750077",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001 Content-Length: 0 ============================SEMS======================== 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5e16 -> 0xe11e!] UDP, length 721 E...C.@.@.................^.
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bK~0uk0ahN;rport From: sip:+985137054518@r-kh.com;transport=UDP;tag=34384541-5B814A44000AE296-4B5F5700 To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Contact: sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP;expires=3600 Content-Length: 0
08:23:32.790414 IP (tos 0x0, ttl 255, id 35790, offset 0, flags [none], proto UDP (17), length 593) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 565 E..Q.....................=..SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bK~0uk0ahN To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipDEmH2AWT*3-5-16648*egei.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=34384541-5B814A44000AE296-4B5F5700 Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 CSeq: 10 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com",nonce="179797f920a09d65b5641e5e87df0d8c",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:23:32.855067 IP (tos 0x0, ttl 64, id 17364, offset 0, flags [DF], proto UDP (17), length 1071) 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5f58 -> 0xf553!] UDP, length 1043 E../C.@.@................._X
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bKeAfKkaZa;rport From: sip:+985137054518@r-kh.com;transport=UDP;tag=5A64C27D-5B814A44000CD034-4B6F6700 To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com",nonce="179797f920a09d65b5641e5e87df0d8c",uri="sip:r-kh.com;transport=UDP",response="017efb986e17506a82bb01e8eb136b90",cnonce="3764fd5eb2ea9539d61ec14196a2bf00",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" Allow-Events: presence, kpml Contact: sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP;expires=3600 Content-Length: 0
08:23:32.860417 IP (tos 0x0, ttl 255, id 35804, offset 0, flags [none], proto UDP (17), length 508) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 480 E...........................SIP/2.0 503 Service Unavailable Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bKeAfKkaZa To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipxxsD3FR2VG8e9zxR_1dx*1-1-16648*ihad.1 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5A64C27D-5B814A44000CD034-4B6F6700 Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 CSeq: 10 REGISTER X-ZTE-Cause: "CSCF-1.1.BC004016-BC004288-0-0.pcscf1.r-kh.com" Retry-After: 30 Content-Length: 0
Hello,
It's not directly related to your question but keep in mind that SBC should be put after vendor's/ZTE p-cscf if possible. Otherwise you will have QoS issues (if Rx is enabled/used) because of rewritten SDP from SBC/B2BUA.
Regards, Ivo
On 08/27/2018 08:06 AM, Mojtaba wrote:
Hello, I am working with IMS (ZTE vendor), I want to use SBC in front of IMS network for some security policy (Hide Topology), I used SEMS as SBC in this regards, (like what we have in IMS/SEMS in kamailio by Mr Carsten Bock). When the Sebscriber want to register, The Register request received by sems and the forward to IMS(ZTE), But the "503 Service Unavailable" is received from IMS. I enable "enable_reg_caching=yes" in register.sbcprofile''s configuration file in sems. If i use kamailio, instead of SEMS, The Registration request is done successfully.In Kamailio i just forward the Register request to IMS.like this: route { if (is_method("REGISTER")) { $du = "sip:172.23.1.1:5080"; route(RELAY); } } Let me know do the issue is from myself or from IMS(ZTE)? In the fillowing, I paste all SIP Register signalling. First in kamailio, second with SEMS. ================Kamailio================== 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5e58 -> 0x4193!] UDP, length 787 E../....@.]...............^XREGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- Max-Forwards: 69 Contact: sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Content-Length: 0
08:20:53.114198 IP (tos 0x0, ttl 255, id 25839, offset 0, flags [none], proto UDP (17), length 685) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 657 E...d......$..............l.SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipTR9m3KdZ*3-5-16648*daei.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com",nonce="f42b36e39bdbb33b51599924b304445a",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:20:53.120142 IP (tos 0x10, ttl 64, id 48874, offset 0, flags [none], proto UDP (17), length 1137) 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5f9a -> 0xcc62!] UDP, length 1109 E..q....@.\V.............]_.REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- Max-Forwards: 69 Contact: sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP To: sip:+985137054518@r-kh.com;transport=UDP From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com",nonce="f42b36e39bdbb33b51599924b304445a",uri="sip:r-kh.com;transport=UDP",response="9469852a06c01efeabf3a7a5dd1a9f3b",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" Allow-Events: presence, kpml Content-Length: 0
08:20:53.203871 IP (tos 0x0, ttl 255, id 25842, offset 0, flags [none], proto UDP (17), length 1118) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 1090 E..^d......p.............J.5SIP/2.0 200 OK Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipjRydzgMa*3-5-16648*daej.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Contact: sip:+985137054518@192.168.122.1:64407;transport=UDP;rinstance=e664e178fc12691e;expires=1800 Contact: sip:ZTEAGCF000f425704be720000@agcf2.r-kh.com:5079;appid=2-7;UserRegInfo=002-02-00-0b80-04-172.30.48.143;BACaddr=172.30.48.143;BACport=2944;expires=1800;+sip.instance="urn:uuid:172.30.35.41-000";reg-id=1 P-Associated-URI: tel:+985137054518 P-Associated-URI: sip:+985137054518@r-kh.com Date: Sat, 25 Aug 2018 12:25:17 GMT Authentication-Info: nextnonce="00cfbd64b136c12a4e27b67fd28d19fb",qop=auth,rspauth="91ca956c5eb6ee9f1934e2e770750077",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001 Content-Length: 0 ============================SEMS======================== 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5e16 -> 0xe11e!] UDP, length 721 E...C.@.@.................^.
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bK~0uk0ahN;rport From: sip:+985137054518@r-kh.com;transport=UDP;tag=34384541-5B814A44000AE296-4B5F5700 To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Contact: sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP;expires=3600 Content-Length: 0
08:23:32.790414 IP (tos 0x0, ttl 255, id 35790, offset 0, flags [none], proto UDP (17), length 593) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 565 E..Q.....................=..SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bK~0uk0ahN To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipDEmH2AWT*3-5-16648*egei.3 From: sip:+985137054518@r-kh.com;transport=UDP;tag=34384541-5B814A44000AE296-4B5F5700 Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 CSeq: 10 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com",nonce="179797f920a09d65b5641e5e87df0d8c",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:23:32.855067 IP (tos 0x0, ttl 64, id 17364, offset 0, flags [DF], proto UDP (17), length 1071) 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5f58 -> 0xf553!] UDP, length 1043 E../C.@.@................._X
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bKeAfKkaZa;rport From: sip:+985137054518@r-kh.com;transport=UDP;tag=5A64C27D-5B814A44000CD034-4B6F6700 To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com",nonce="179797f920a09d65b5641e5e87df0d8c",uri="sip:r-kh.com;transport=UDP",response="017efb986e17506a82bb01e8eb136b90",cnonce="3764fd5eb2ea9539d61ec14196a2bf00",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" Allow-Events: presence, kpml Contact: sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP;expires=3600 Content-Length: 0
08:23:32.860417 IP (tos 0x0, ttl 255, id 35804, offset 0, flags [none], proto UDP (17), length 508) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 480 E...........................SIP/2.0 503 Service Unavailable Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bKeAfKkaZa To: sip:+985137054518@r-kh.com;transport=UDP;tag=ztesipxxsD3FR2VG8e9zxR_1dx*1-1-16648*ihad.1 From: sip:+985137054518@r-kh.com;transport=UDP;tag=5A64C27D-5B814A44000CD034-4B6F6700 Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 CSeq: 10 REGISTER X-ZTE-Cause: "CSCF-1.1.BC004016-BC004288-0-0.pcscf1.r-kh.com" Retry-After: 30 Content-Length: 0
Hi, I knew, But i have not access to ZTE's pcscf. Thank you. But what about my question?Why the UE could not register via SEMS?
On Mon, 27 Aug 2018 15:40 Ivailo Dobrev, ivailod@telera.eu wrote:
Hello,
It's not directly related to your question but keep in mind that SBC should be put after vendor's/ZTE p-cscf if possible. Otherwise you will have QoS issues (if Rx is enabled/used) because of rewritten SDP from SBC/B2BUA.
Regards, Ivo
On 08/27/2018 08:06 AM, Mojtaba wrote:
Hello, I am working with IMS (ZTE vendor), I want to use SBC in front of IMS network for some security policy (Hide Topology), I used SEMS as SBC in this regards, (like what we have in IMS/SEMS in kamailio by Mr Carsten Bock). When the Sebscriber want to register, The Register request received by sems and the forward to IMS(ZTE), But the "503 Service Unavailable" is received from IMS. I enable "enable_reg_caching=yes" in register.sbcprofile''s configuration file in sems. If i use kamailio, instead of SEMS, The Registration request is done successfully.In Kamailio i just forward the Register request to IMS.like this: route { if (is_method("REGISTER")) { $du = "sip:172.23.1.1:5080"; route(RELAY); } } Let me know do the issue is from myself or from IMS(ZTE)? In the fillowing, I paste all SIP Register signalling. First in kamailio, second with SEMS. ================Kamailio================== 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5e58 -> 0x4193!] UDP, length 787 E../....@.]...............^XREGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- Max-Forwards: 69 Contact: <sip:+985137054518@192.168.122.1:64407
;rinstance=e664e178fc12691e;transport=UDP>
From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer,
X-cisco-serviceuri
User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Content-Length: 0
08:20:53.114198 IP (tos 0x0, ttl 255, id 25839, offset 0, flags [none], proto UDP (17), length 685) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 657 E...d......$..............l.SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- To: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=ztesipTR9m3KdZ*3-5-16648*daei.3
From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 1 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com
",nonce="f42b36e39bdbb33b51599924b304445a",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:20:53.120142 IP (tos 0x10, ttl 64, id 48874, offset 0, flags [none], proto UDP (17), length 1137) 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5f9a -> 0xcc62!] UDP, length 1109 E..q....@.\V.............]_.REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- Max-Forwards: 69 Contact: <sip:+985137054518@192.168.122.1:64407
;rinstance=e664e178fc12691e;transport=UDP>
To: sip:+985137054518@r-kh.com;transport=UDP From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Expires: 3600 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer,
X-cisco-serviceuri
User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com
",nonce="f42b36e39bdbb33b51599924b304445a",uri="sip:r-kh.com ;transport=UDP",response="9469852a06c01efeabf3a7a5dd1a9f3b",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg=="
Allow-Events: presence, kpml Content-Length: 0
08:20:53.203871 IP (tos 0x0, ttl 255, id 25842, offset 0, flags [none], proto UDP (17), length 1118) 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 1090 E..^d......p.............J.5SIP/2.0 200 OK Via: SIP/2.0/UDP 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 Via: SIP/2.0/UDP 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- To: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=ztesipjRydzgMa*3-5-16648*daej.3
From: sip:+985137054518@r-kh.com;transport=UDP;tag=5aef0541 Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. CSeq: 2 REGISTER Contact: <sip:+985137054518@192.168.122.1:64407
;transport=UDP;rinstance=e664e178fc12691e>;expires=1800
Contact: <sip:ZTEAGCF000f425704be720000@agcf2.r-kh.com:5079
;appid=2-7;UserRegInfo=002-02-00-0b80-04-172.30.48.143;BACaddr=172.30.48.143;BACport=2944>;expires=1800;+sip.instance="urn:uuid:172.30.35.41-000";reg-id=1
P-Associated-URI: tel:+985137054518 P-Associated-URI: sip:+985137054518@r-kh.com Date: Sat, 25 Aug 2018 12:25:17 GMT Authentication-Info:
nextnonce="00cfbd64b136c12a4e27b67fd28d19fb",qop=auth,rspauth="91ca956c5eb6ee9f1934e2e770750077",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001
Content-Length: 0 ============================SEMS======================== 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5e16 -> 0xe11e!] UDP, length 721 E...C.@.@.................^.
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bK~0uk0ahN;rport From: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=34384541-5B814A44000AE296-4B5F5700
To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer,
X-cisco-serviceuri
User-Agent: Z 3.3.25608 r25552 Allow-Events: presence, kpml Contact: <sip:+985137054518@192.168.122.1:64407
;rinstance=868560f8328d39e9;transport=UDP>;expires=3600
Content-Length: 0
08:23:32.790414 IP (tos 0x0, ttl 255, id 35790, offset 0, flags [none], proto UDP (17), length 593) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 565 E..Q.....................=..SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bK~0uk0ahN To: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=ztesipDEmH2AWT*3-5-16648*egei.3
From: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=34384541-5B814A44000AE296-4B5F5700
Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 CSeq: 10 REGISTER Content-Length: 0 WWW-Authenticate: Digest realm="r-kh.com",domain="sip:scscf1.r-kh.com
",nonce="179797f920a09d65b5641e5e87df0d8c",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth"
08:23:32.855067 IP (tos 0x0, ttl 64, id 17364, offset 0, flags [DF], proto UDP (17), length 1071) 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5f58 -> 0xf553!] UDP, length 1043 E../C.@.@................._X
REGISTER sip:r-kh.com SIP/2.0 Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bKeAfKkaZa;rport From: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=5A64C27D-5B814A44000CD034-4B6F6700
To: sip:+985137054518@r-kh.com;transport=UDP CSeq: 10 REGISTER Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 Route: sip:172.23.1.1:5080;lr Max-Forwards: 70 Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE Supported: replaces, norefersub, extended-refer, timer,
X-cisco-serviceuri
User-Agent: Z 3.3.25608 r25552 Authorization: Digest username="+985137054518@r-kh.com",realm="r-kh.com
",nonce="179797f920a09d65b5641e5e87df0d8c",uri="sip:r-kh.com ;transport=UDP",response="017efb986e17506a82bb01e8eb136b90",cnonce="3764fd5eb2ea9539d61ec14196a2bf00",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg=="
Allow-Events: presence, kpml Contact: <sip:+985137054518@192.168.122.1:64407
;rinstance=868560f8328d39e9;transport=UDP>;expires=3600
Content-Length: 0
08:23:32.860417 IP (tos 0x0, ttl 255, id 35804, offset 0, flags [none], proto UDP (17), length 508) 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 480 E...........................SIP/2.0 503 Service Unavailable Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bKeAfKkaZa To: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=ztesipxxsD3FR2VG8e9zxR_1dx*1-1-16648*ihad.1
From: <sip:+985137054518@r-kh.com
;transport=UDP>;tag=5A64C27D-5B814A44000CD034-4B6F6700
Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 CSeq: 10 REGISTER X-ZTE-Cause: "CSCF-1.1.BC004016-BC004288-0-0.pcscf1.r-kh.com" Retry-After: 30 Content-Length: 0
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Maybe it is time to look at ZTE traces/logs.
P.S. Try to check in docs meaning of X-ZTE-Cause
On 08/27/2018 04:06 PM, Mojtaba wrote:
Hi, I knew, But i have not access to ZTE's pcscf. Thank you. But what about my question?Why the UE could not register via SEMS?
On Mon, 27 Aug 2018 15:40 Ivailo Dobrev, <ivailod@telera.eu mailto:ivailod@telera.eu> wrote:
Hello, It's not directly related to your question but keep in mind that SBC should be put after vendor's/ZTE p-cscf if possible. Otherwise you will have QoS issues (if Rx is enabled/used) because of rewritten SDP from SBC/B2BUA. Regards, Ivo On 08/27/2018 08:06 AM, Mojtaba wrote: > Hello, > I am working with IMS (ZTE vendor), I want to use SBC in front of IMS > network for some security policy (Hide Topology), > I used SEMS as SBC in this regards, (like what we have in IMS/SEMS in > kamailio by Mr Carsten Bock). > When the Sebscriber want to register, The Register request received by > sems and the forward to IMS(ZTE), But the "503 Service Unavailable" is > received from IMS. > I enable "enable_reg_caching=yes" in register.sbcprofile''s > configuration file in sems. > If i use kamailio, instead of SEMS, The Registration request is done > successfully.In Kamailio i just forward the Register request to > IMS.like this: > route { > if (is_method("REGISTER")) { > $du = "sip:172.23.1.1:5080 <http://172.23.1.1:5080>"; > route(RELAY); > } > } > Let me know do the issue is from myself or from IMS(ZTE)? > In the fillowing, I paste all SIP Register signalling. First in > kamailio, second with SEMS. > ================Kamailio================== > 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5e58 -> > 0x4193!] UDP, length 787 > E../....@.]...............^XREGISTER sip:r-kh.com <http://r-kh.com> SIP/2.0 > Via: SIP/2.0/UDP > 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 > Via: SIP/2.0/UDP > 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- > Max-Forwards: 69 > Contact: <sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP> > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5aef0541 > Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. > CSeq: 1 REGISTER > Expires: 3600 > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, > INFO, SUBSCRIBE > Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri > User-Agent: Z 3.3.25608 r25552 > Allow-Events: presence, kpml > Content-Length: 0 > > > 08:20:53.114198 IP (tos 0x0, ttl 255, id 25839, offset 0, flags > [none], proto UDP (17), length 685) > 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 657 > E...d......$..............l.SIP/2.0 401 Unauthorized > Via: SIP/2.0/UDP > 172.23.1.252:4080;branch=z9hG4bK018b.e091260b1b7395975a2ff1be0b9bec60.0 > Via: SIP/2.0/UDP > 192.168.122.1:64407;branch=z9hG4bK-d8754z-7c208b9d587de818-1---d8754z- > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=ztesipTR9m3KdZ*3-5-16648*daei.3 > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5aef0541 > Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. > CSeq: 1 REGISTER > Content-Length: 0 > WWW-Authenticate: Digest > realm="r-kh.com <http://r-kh.com>",domain="sip:scscf1.r-kh.com <http://scscf1.r-kh.com>",nonce="f42b36e39bdbb33b51599924b304445a",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth" > > > 08:20:53.120142 IP (tos 0x10, ttl 64, id 48874, offset 0, flags > [none], proto UDP (17), length 1137) > 172.23.1.252.4080 > 172.23.1.1.5080: [bad udp cksum 0x5f9a -> > 0xcc62!] UDP, length 1109 > E..q....@.\V.............]_.REGISTER sip:r-kh.com <http://r-kh.com> SIP/2.0 > Via: SIP/2.0/UDP > 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 > Via: SIP/2.0/UDP > 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- > Max-Forwards: 69 > Contact: <sip:+985137054518@192.168.122.1:64407;rinstance=e664e178fc12691e;transport=UDP> > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP> > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5aef0541 > Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. > CSeq: 2 REGISTER > Expires: 3600 > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, > INFO, SUBSCRIBE > Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri > User-Agent: Z 3.3.25608 r25552 > Authorization: Digest > username="+985137054518@r-kh.com <mailto:985137054518@r-kh.com>",realm="r-kh.com <http://r-kh.com>",nonce="f42b36e39bdbb33b51599924b304445a",uri="sip:r-kh.com <http://r-kh.com>;transport=UDP",response="9469852a06c01efeabf3a7a5dd1a9f3b",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" > Allow-Events: presence, kpml > Content-Length: 0 > > > 08:20:53.203871 IP (tos 0x0, ttl 255, id 25842, offset 0, flags > [none], proto UDP (17), length 1118) > 172.23.1.1.5080 > 172.23.1.252.4080: [udp sum ok] UDP, length 1090 > E..^d......p.............J.5SIP/2.0 200 OK > Via: SIP/2.0/UDP > 172.23.1.252:4080;branch=z9hG4bKd08b.4d2858f41d496b471c01a28e76190390.0 > Via: SIP/2.0/UDP > 192.168.122.1:64407;branch=z9hG4bK-d8754z-a4d19146375d56f6-1---d8754z- > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=ztesipjRydzgMa*3-5-16648*daej.3 > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5aef0541 > Call-ID: ZWYxMzUzNTQzN2I2MTRiMjE2NWZjMzUzMDFmMDhkOWY. > CSeq: 2 REGISTER > Contact: <sip:+985137054518@192.168.122.1:64407;transport=UDP;rinstance=e664e178fc12691e>;expires=1800 > Contact: <sip:ZTEAGCF000f425704be720000@agcf2.r-kh.com:5079;appid=2-7;UserRegInfo=002-02-00-0b80-04-172.30.48.143;BACaddr=172.30.48.143;BACport=2944>;expires=1800;+sip.instance="<urn:uuid:172.30.35.41-000>";reg-id=1 > P-Associated-URI: <tel:+985137054518> > P-Associated-URI: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>> > Date: Sat, 25 Aug 2018 12:25:17 GMT > Authentication-Info: > nextnonce="00cfbd64b136c12a4e27b67fd28d19fb",qop=auth,rspauth="91ca956c5eb6ee9f1934e2e770750077",cnonce="79d36600575648a1cc7221d8e1b5d53d",nc=00000001 > Content-Length: 0 > ============================SEMS======================== > 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5e16 -> > 0xe11e!] UDP, length 721 > E...C.@.@.................^. > > REGISTER sip:r-kh.com <http://r-kh.com> SIP/2.0 > Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bK~0uk0ahN;rport > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=34384541-5B814A44000AE296-4B5F5700 > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP> > CSeq: 10 REGISTER > Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 > Route: <sip:172.23.1.1:5080;lr> > Max-Forwards: 70 > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, > INFO, SUBSCRIBE > Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri > User-Agent: Z 3.3.25608 r25552 > Allow-Events: presence, kpml > Contact: <sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP>;expires=3600 > Content-Length: 0 > > > 08:23:32.790414 IP (tos 0x0, ttl 255, id 35790, offset 0, flags > [none], proto UDP (17), length 593) > 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 565 > E..Q.....................=..SIP/2.0 401 Unauthorized > Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bK~0uk0ahN > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=ztesipDEmH2AWT*3-5-16648*egei.3 > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=34384541-5B814A44000AE296-4B5F5700 > Call-ID: 37B52BC0-5B814A44000AE592-4B5F5700 > CSeq: 10 REGISTER > Content-Length: 0 > WWW-Authenticate: Digest > realm="r-kh.com <http://r-kh.com>",domain="sip:scscf1.r-kh.com <http://scscf1.r-kh.com>",nonce="179797f920a09d65b5641e5e87df0d8c",opaque="aW1zLmNvbS5jbg==",stale=TRUE,algorithm=MD5,qop="auth" > > > 08:23:32.855067 IP (tos 0x0, ttl 64, id 17364, offset 0, flags [DF], > proto UDP (17), length 1071) > 172.23.1.252.5080 > 172.23.1.1.5080: [bad udp cksum 0x5f58 -> > 0xf553!] UDP, length 1043 > E../C.@.@................._X > > REGISTER sip:r-kh.com <http://r-kh.com> SIP/2.0 > Via: SIP/2.0/UDP 172.23.1.252:5080;branch=z9hG4bKeAfKkaZa;rport > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5A64C27D-5B814A44000CD034-4B6F6700 > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP> > CSeq: 10 REGISTER > Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 > Route: <sip:172.23.1.1:5080;lr> > Max-Forwards: 70 > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, > INFO, SUBSCRIBE > Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri > User-Agent: Z 3.3.25608 r25552 > Authorization: Digest > username="+985137054518@r-kh.com <mailto:985137054518@r-kh.com>",realm="r-kh.com <http://r-kh.com>",nonce="179797f920a09d65b5641e5e87df0d8c",uri="sip:r-kh.com <http://r-kh.com>;transport=UDP",response="017efb986e17506a82bb01e8eb136b90",cnonce="3764fd5eb2ea9539d61ec14196a2bf00",nc=00000001,qop=auth,algorithm=MD5,opaque="aW1zLmNvbS5jbg==" > Allow-Events: presence, kpml > Contact: <sip:+985137054518@192.168.122.1:64407;rinstance=868560f8328d39e9;transport=UDP>;expires=3600 > Content-Length: 0 > > > 08:23:32.860417 IP (tos 0x0, ttl 255, id 35804, offset 0, flags > [none], proto UDP (17), length 508) > 172.23.1.1.5080 > 172.23.1.252.5080: [udp sum ok] UDP, length 480 > E...........................SIP/2.0 503 Service Unavailable > Via: SIP/2.0/UDP 172.23.1.252:5080;rport=5080;branch=z9hG4bKeAfKkaZa > To: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=ztesipxxsD3FR2VG8e9zxR_1dx*1-1-16648*ihad.1 > From: <sip:+985137054518@r-kh.com <mailto:sip%3A%2B985137054518@r-kh.com>;transport=UDP>;tag=5A64C27D-5B814A44000CD034-4B6F6700 > Call-ID: 5380C97E-5B814A44000CD2A5-4B6F6700 > CSeq: 10 REGISTER > X-ZTE-Cause: "CSCF-1.1.BC004016-BC004288-0-0.pcscf1.r-kh.com <http://CSCF-1.1.BC004016-BC004288-0-0.pcscf1.r-kh.com>" > Retry-After: 30 > Content-Length: 0 > > > > _______________________________________________ Kamailio (SER) - 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