[Devel] uac_replace_from: display name not restored for ACK/BYE

Bogdan-Andrei Iancu bogdan at voice-system.ro
Mon Feb 12 11:56:27 CET 2007


Hi Ovidiu,

no, the display name is not restorable because: 1) is it not transaction 
critical element, 2) usually is it used only in original request and 3) 
more info in RR would be required for restoring it also.

you can use uac_replace_from :
   

# remove display and do not touch uri
uac_replace_from("","");


to remove the display from the sequential requests.

regards,
bogdan

Ovidiu Sas wrote:
> Hi,
>
> I was playing with uac_replace_from and I noticed that the display
> name for "From" header is not restored.  Is this the expected
> bahaviour?
>
>
> Regards,
> Ovidiu Sas
>
>
> Here's the relevant trace (compare "From" for the second INVITE with
> "From" for the second ACK/BYE):
>
> U 2007/02/11 22:35:23.018769 192.168.2.102:50611 -> 192.168.2.22:5060
> INVITE sip:200 at 192.168.2.22 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK18d317c9.
> From: "Line 6" 
> <sip:line-6 at 192.168.2.22>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 70.
> Date: Mon, 12 Feb 2007 03:34:57 GMT.
> CSeq: 102 INVITE.
> User-Agent: Cisco-CP7960G/7.5.
> Contact: <sip:line-6 at 192.168.2.102:5060>.
> Proxy-Authorization: Digest
> username="line-6",realm="192.168.2.22",uri="sip:200 at 192.168.2.22",response="d8424444a17c4d2d2a2fde1eb746a39b",nonce="45cf9b563e06cce0b3403195c0b70ade460ac633",algorithm=md5. 
>
> Expires: 180.
> Content-Length: 256.
> Content-Type: application/sdp.
> Content-Disposition: session;handling=optional.
> .
> v=0.
> o=Cisco-SIPUA 9111 0 IN IP4 192.168.2.102.
> s=SIP Call.
> t=0 0.
> m=audio 29584 RTP/AVP 0 8 18 101.
> c=IN IP4 192.168.2.102.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=sendrecv.
>
>
> U 2007/02/11 22:35:23.067217 192.168.2.22:5060 -> 192.168.2.20:5060
> INVITE sip:200 at 192.168.2.20:5060;transport=udp SIP/2.0.
> Record-Route: 
> <sip:192.168.2.22;lr;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM->. 
>
> Via: SIP/2.0/UDP 192.168.2.22;branch=z9hG4bK1d32.06bd5ca7.0.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK18d317c9.
> From: "Anonymous"
> <sip:anonymous at 127.0.0.1>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 69.
> Date: Mon, 12 Feb 2007 03:34:57 GMT.
> CSeq: 102 INVITE.
> User-Agent: Cisco-CP7960G/7.5.
> Contact: <sip:line-6 at 192.168.2.102:5060>.
> Expires: 180.
> Content-Length: 256.
> Content-Type: application/sdp.
> Content-Disposition: session;handling=optional.
> .
> v=0.
> o=Cisco-SIPUA 9111 0 IN IP4 192.168.2.102.
> s=SIP Call.
> t=0 0.
> m=audio 29584 RTP/AVP 0 8 18 101.
> c=IN IP4 192.168.2.102.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=sendrecv.
>
>
>
> ....
>
>
>
> U 2007/02/11 22:35:23.396768 192.168.2.102:50611 -> 192.168.2.22:5060
> ACK 
> sip:200 at 192.168.2.20:5060;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM- 
>
> SIP/2.0.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK06cbe6a6.
> From: "Line 6" 
> <sip:line-6 at 192.168.2.22>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>;tag=as27b5454a.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 70.
> Date: Mon, 12 Feb 2007 03:34:57 GMT.
> CSeq: 102 ACK.
> User-Agent: Cisco-CP7960G/7.5.
> Route: 
> <sip:192.168.2.22:5060;lr;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM->. 
>
> Proxy-Authorization: Digest
> username="line-6",realm="192.168.2.22",uri="sip:200 at 192.168.2.22",response="d8424444a17c4d2d2a2fde1eb746a39b",nonce="45cf9b563e06cce0b3403195c0b70ade460ac633",algorithm=md5. 
>
> Content-Length: 0.
> .
>
>
> U 2007/02/11 22:35:23.401911 192.168.2.22:5060 -> 192.168.2.20:5060
> ACK 
> sip:200 at 192.168.2.20:5060;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM- 
>
> SIP/2.0.
> Record-Route: 
> <sip:192.168.2.22;lr;ftag=00036be7b1244f320d98fce7-0c5b9355>.
> Via: SIP/2.0/UDP 192.168.2.22;branch=z9hG4bK1d32.06bd5ca7.2.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK06cbe6a6.
> From: "Line 6" 
> <sip:anonymous at 127.0.0.1>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>;tag=as27b5454a.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 69.
> Date: Mon, 12 Feb 2007 03:34:57 GMT.
> CSeq: 102 ACK.
> User-Agent: Cisco-CP7960G/7.5.
> Content-Length: 0.
> P-hint: rr-enforced.
> .
>
>
> ....
>
>
>
> U 2007/02/11 22:35:26.044534 192.168.2.102:50611 -> 192.168.2.22:5060
> BYE 
> sip:200 at 192.168.2.20:5060;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM- 
>
> SIP/2.0.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK51ed5d3b.
> From: "Line 6" 
> <sip:line-6 at 192.168.2.22>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>;tag=as27b5454a.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 70.
> Date: Mon, 12 Feb 2007 03:35:00 GMT.
> CSeq: 103 BYE.
> User-Agent: Cisco-CP7960G/7.5.
> Content-Length: 0.
> RTP-RxStat: Dur=??,Pkt=??,Oct=??,LatePkt=??,LostPkt=??,AvgJit=??.
> RTP-TxStat: Dur=??,Pkt=??,Oct=??.
> Route: 
> <sip:192.168.2.22:5060;lr;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM->. 
>
> Proxy-Authorization: Digest
> username="line-6",realm="192.168.2.22",uri="sip:200 at 192.168.2.20:5060;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM-",response="403793ecca491c274f18f0fb628e8691",nonce="45cf9b563e06cce0b3403195c0b70ade460ac633",algorithm=md5. 
>
> .
>
>
> U 2007/02/11 22:35:26.074212 192.168.2.22:5060 -> 192.168.2.20:5060
> BYE 
> sip:200 at 192.168.2.20:5060;ftag=00036be7b1244f320d98fce7-0c5b9355;vsf=AAAAAA0HAQtUWy9ESnIfAwEWHhweHAM- 
>
> SIP/2.0.
> Record-Route: 
> <sip:192.168.2.22;lr;ftag=00036be7b1244f320d98fce7-0c5b9355>.
> Via: SIP/2.0/UDP 192.168.2.22;branch=z9hG4bK2d32.149a9413.0.
> Via: SIP/2.0/UDP 192.168.2.102:5060;branch=z9hG4bK51ed5d3b.
> From: "Line 6" 
> <sip:anonymous at 127.0.0.1>;tag=00036be7b1244f320d98fce7-0c5b9355.
> To: <sip:200 at 192.168.2.22>;tag=as27b5454a.
> Call-ID: 00036be7-b1240065-346cf3a4-75f242f5 at 192.168.2.102.
> Max-Forwards: 69.
> Date: Mon, 12 Feb 2007 03:35:00 GMT.
> CSeq: 103 BYE.
> User-Agent: Cisco-CP7960G/7.5.
> Content-Length: 0.
> RTP-RxStat: Dur=??,Pkt=??,Oct=??,LatePkt=??,LostPkt=??,AvgJit=??.
> RTP-TxStat: Dur=??,Pkt=??,Oct=??.
> P-hint: rr-enforced.
> .
>
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