>>>First SUBSCRIBE attempt: U 192.168.34.226:5852 -> 192.168.32.40:5060 SUBSCRIBE sip:grandstream@sip.local SIP/2.0. Via: SIP/2.0/UDP 10.0.3.169:5062;branch=z9hG4bK48f04661c5c48c77. From: "Daniel" ;tag=67d8f67065827fe2. To: . Contact: . Supported: eventlist, path. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2001 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.34.226:5852 SIP/2.0 401 Unauthorized. Via: SIP/2.0/UDP 10.0.3.169:5062;branch=z9hG4bK48f04661c5c48c77;rport=5852;received=192.168.34.226. From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=b27e1a1d33761e85846fc98f5f3a7e58.cc64. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2001 SUBSCRIBE. WWW-Authenticate: Digest realm="sip.local", nonce="ULS+7FC0vcAKnufzKUmvuZd/BWWs//aU", qop="auth". Server: kamailio (3.3.2 (x86_64/linux)). Content-Length: 0. . # U 192.168.34.226:5852 -> 192.168.32.40:5060 SUBSCRIBE sip:grandstream@sip.local SIP/2.0. Via: SIP/2.0/UDP 10.0.3.169:5062;branch=z9hG4bKcd8e3f6af80c642a. From: "Daniel" ;tag=67d8f67065827fe2. To: . Contact: . Supported: eventlist, path. Authorization: Digest username="grandstream", realm="sip.local", algorithm=MD5, uri="sip:grandstream@sip.local", qop=auth, nc=00000001, cnonce="fedaf6ad07450657", nonce="ULS+7FC0vcAKnufzKUmvuZd/BWWs//aU", response="0675c1a9545c00b32fa9eed9515f1113". Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2002 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.32.41:5060 SUBSCRIBE sip:0880100782@192.168.32.41:5060 SIP/2.0. Record-Route: . Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bKec4c.f5f301b7.0. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRyox1dsuA7pWRktxGZfWgeKCgeS-RrdERX0m85AzD4pzDMlxRy6uAXsEOdsE1dfxAZ057Nlzq4pWpefZD6AhGtwWDJjEqeuZpMdzRE8E8H8WGIAEAMfZM**. From: "Daniel" ;tag=67d8f67065827fe2. To: . Contact: . Supported: eventlist, path. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2002 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 69. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.41:5060 -> 192.168.32.40:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bKec4c.f5f301b7.0;received=192.168.32.40;rport=5060. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRyox1dsuA7pWRktxGZfWgeKCgeS-RrdERX0m85AzD4pzDMlxRy6uAXsEOdsE1dfxAZ057Nlzq4pWpefZD6AhGtwWDJjEqeuZpMdzRE8E8H8WGIAEAMfZM**. Record-Route: . From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2002 SUBSCRIBE. Server: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Expires: 180. Contact: ;expires=180. Content-Length: 0. . # U 192.168.32.41:5060 -> 192.168.32.40:5060 NOTIFY sip:192.168.0.1;line=pcs-mp4KW89fZD6nmgQfzDHcMG7KuAyoxfd3EAnwERypxAcJCq4JmsS3xGnoxAxtuAxSuAXfEPdtWGrfvA709jeJCPEKCgeS-.5nmy** SIP/2.0. Via: SIP/2.0/UDP 192.168.32.41:5060;branch=z9hG4bK5e6585ad;rport. Max-Forwards: 70. Route: . From: "asterisk" ;tag=as324de8f3. To: ;tag=67d8f67065827fe2. Contact: . Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 102 NOTIFY. User-Agent: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Event: message-summary. Content-Type: application/simple-message-summary. Subscription-State: active. Content-Length: 94. . Messages-Waiting: yes. Message-Account: sip:asterisk@192.168.32.41. Voice-Message: 1/0 (0/0). # U 192.168.32.40:5060 -> 192.168.34.226:5852 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.0.3.169:5062;rport=5852;received=192.168.34.226;branch=z9hG4bKcd8e3f6af80c642a. Record-Route: . From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2002 SUBSCRIBE. Server: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Expires: 180. Contact: ;expires=180. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.34.226:5852 NOTIFY sip:grandstream@10.0.3.169:5062;transport=udp SIP/2.0. Record-Route: . Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bK88a7.e2e47931.0. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRy6uAXsEOdsxidSxRktxGZKWtQX-.5A9Acim8HoZpNlaA4kQsQiOs54EArdEDHnWgeKCgeS-RrKEAy*. Max-Forwards: 69. From: "asterisk" ;tag=as324de8f3. To: ;tag=67d8f67065827fe2. Contact: . Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 102 NOTIFY. User-Agent: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Event: message-summary. Content-Type: application/simple-message-summary. Subscription-State: active. Content-Length: 94. . Messages-Waiting: yes. Message-Account: sip:asterisk@192.168.32.41. Voice-Message: 1/0 (0/0). # U 192.168.34.226:5852 -> 192.168.32.40:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bK88a7.e2e47931.0. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRy6uAXsEOdsxidSxRktxGZKWtQX-.5A9Acim8HoZpNlaA4kQsQiOs54EArdEDHnWgeKCgeS-RrKEAy*. Record-Route: . From: "asterisk" ;tag=as324de8f3. To: ;tag=67d8f67065827fe2. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 102 NOTIFY. User-Agent: Grandstream GXP2000 1.2.5.3. Contact: . Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Supported: replaces, timer. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.32.41:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.32.41:5060;branch=z9hG4bK5e6585ad;rport=5060. Record-Route: . From: "asterisk" ;tag=as324de8f3. To: ;tag=67d8f67065827fe2. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 102 NOTIFY. User-Agent: Grandstream GXP2000 1.2.5.3. Contact: . Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Supported: replaces, timer. Content-Length: 0. . # >>>Second attempt: U 192.168.34.226:5852 -> 192.168.32.40:5060 SUBSCRIBE sip:grandstream@sip.local SIP/2.0. Via: SIP/2.0/UDP 10.0.3.169:5062;branch=z9hG4bK8aa08ff3cba63217. Route: . From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Contact: . Supported: eventlist, path. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2003 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.34.226:5852 SIP/2.0 401 Unauthorized. Via: SIP/2.0/UDP 10.0.3.169:5062;rport=5852;received=192.168.34.226;branch=z9hG4bK8aa08ff3cba63217. From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2003 SUBSCRIBE. WWW-Authenticate: Digest realm="sip.local", nonce="ULS/RlC0vhpOPfY7vCYlk31hbpcaI8Qw", qop="auth". Server: kamailio (3.3.2 (x86_64/linux)). Content-Length: 0. . # U 192.168.34.226:5852 -> 192.168.32.40:5060 SUBSCRIBE sip:grandstream@sip.local SIP/2.0. Via: SIP/2.0/UDP 10.0.3.169:5062;branch=z9hG4bK99b902c8103924e9. Route: . From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Contact: . Supported: eventlist, path. Authorization: Digest username="grandstream", realm="sip.local", algorithm=MD5, uri="sip:grandstream@sip.local", qop=auth, nc=00000001, cnonce="dd4d638696e60f7e", nonce="ULS/RlC0vhpOPfY7vCYlk31hbpcaI8Qw", response="d4d562f5a60bba1b1e30eb5b82b0bfad". Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2004 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.32.41:5060 SUBSCRIBE sip:0880100782@192.168.32.41:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bKcc4c.9be8cca4.0. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRy6uAXsEOdsxidSxGcfmqlf9GStxGZKWtQX-DQA9Acim8HoZpNlaA4kQsQiOpEAEqxoWqe4WqEAZRMoxy**. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRnfuA7pW1dKuA70ZPeJC8Ek-.IbZplsu.eRE7ttmtJbaGHTE5HXar6drP4baGHnmg5IEgI.r8cSa79hz49PzrcGzp5Ru5efz75ODGIcWG5IanMSmjV7RD3drPnp9rHZmS5-zjEHxDQ8a7HhxGrgR83wmr5K5gI4z4V7EnHkQgQg5SQYhn53z.5.rAQV5te6z4VsRAEdQgNpa7HQEH9EYik*. From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Contact: . Supported: eventlist, path. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2004 SUBSCRIBE. User-Agent: Grandstream GXP2000 1.2.5.3. Max-Forwards: 68. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSAGE. Event: message-summary. Expires: 180. Accept: application/simple-message-summary. Content-Length: 0. . # U 192.168.32.41:5060 -> 192.168.32.40:5060 SIP/2.0 404 Not found. Via: SIP/2.0/UDP 192.168.32.40;branch=z9hG4bKcc4c.9be8cca4.0;received=192.168.32.40;rport=5060. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRy6uAXsEOdsxidSxGcfmqlf9GStxGZKWtQX-DQA9Acim8HoZpNlaA4kQsQiOpEAEqxoWqe4WqEAZRMoxy**. Via: SIP/2.0/UDP 192.168.0.1;branch=pocos-rS4MusXox1l5QHyNxRnfuA7pW1dKuA70ZPeJC8Ek-.IbZplsu.eRE7ttmtJbaGHTE5HXar6drP4baGHnmg5IEgI.r8cSa79hz49PzrcGzp5Ru5efz75ODGIcWG5IanMSmjV7RD3drPnp9rHZmS5-zjEHxDQ8a7HhxGrgR83wmr5K5gI4z4V7EnHkQgQg5SQYhn53z.5.rAQV5te6z4VsRAEdQgNpa7HQEH9EYik*. From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2004 SUBSCRIBE. Server: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Content-Length: 0. . # U 192.168.32.40:5060 -> 192.168.34.226:5852 SIP/2.0 404 Not found. Via: SIP/2.0/UDP 10.0.3.169:5062;rport=5852;received=192.168.34.226;branch=z9hG4bK99b902c8103924e9. From: "Daniel" ;tag=67d8f67065827fe2. To: ;tag=as324de8f3. Call-ID: aaa00e223a7031b0@10.0.3.169. CSeq: 2004 SUBSCRIBE. Server: Asterisk PBX 1.8.13.1~dfsg-1~bpo60+1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Content-Length: 0. . #