[Freeswitch-users] iLBC question

Alex Gusak alex.gusak at gmail.com
Mon Jun 23 08:07:49 PDT 2008


As I wrote, we tested several clients.
One example of call from Zoiper (alex_gusak) to Zoiper (edward).
( Zoiper  <-> SER <-> FreeSWITCH <-> SER <-> Zoiper  )
The first client sends iLBC rtpmap: 98, mode = 30, FreeSWITCH sends to
second client iLBC rtpmap: 102, mode30.
Both the client did not hear one another.
The same situation if the call directly through FS without using SER
(Zoiper <-> FreeSWITCH <-> Zoiper)

call sip_trace:





recv 935 bytes from udp/[80.70.68.2]:5060 at 14:39:25.487170:
   ------------------------------------------------------------------------
   INVITE sip:edward at 80.70.68.3;transport=UDP SIP/2.0
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK46d3.96dae041.0
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-de84dc00e12f87c6-1---d8754z-;rport=5060
   Max-Forwards: 16
   Contact: <sip:alex_gusak at 213.133.160.108:5060>
   To: <sip:edward at sip.3fon.net>;transport=UDP
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 2 INVITE
   Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY, REFER, MESSAGE,
OPTIONS, INFO
   Content-Type: application/sdp
   User-Agent: Zoiper rev.647
   Content-Length: 224
   P-RTP-Proxy: YES

   v=0
   o=Z 0 0 IN IP4 213.133.160.108
   s=Z
   c=IN IP4 80.70.68.4
   t=0 0
   m=audio 35680 RTP/AVP 98 101
   a=rtpmap:98 iLBC/8000
   a=fmtp:98 mode=30
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-15
   a=sendrecv
   a=nortpproxy:yes
   ------------------------------------------------------------------------
send 511 bytes to udp/[80.70.68.2]:5060 at 14:39:25.487872:
   ------------------------------------------------------------------------
   SIP/2.0 100 Trying
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK46d3.96dae041.0;rport=5060
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-de84dc00e12f87c6-1---d8754z-;rport=5060
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   To: <sip:edward at sip.3fon.net>;transport=UDP
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 2 INVITE
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Content-Length: 0

   ------------------------------------------------------------------------
send 1154 bytes to udp/[80.70.68.2]:5060 at 14:39:25.601403:
   ------------------------------------------------------------------------
   INVITE sip:edward at sip.3fon.net SIP/2.0
   Via: SIP/2.0/UDP 80.70.68.3;rport;branch=z9hG4bKSr07NgQtgtgZm
   Max-Forwards: 15
   From: "Alex" <sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   To: <sip:edward at sip.3fon.net>
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997646 INVITE
   Contact: <sip:mod_sofia at 80.70.68.3:5060>
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE,
SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition, timer
   Allow-Events: talk, presence, dialog, call-info, sla,
include-session-description, presence.winfo, message-summary
   Min-SE: 120
   Content-Type: application/sdp
   Content-Disposition: session
   Content-Length: 318
   P-RTP-Proxy: YES
   Remote-Party-ID: "Alex" <sip:alex_gusak at 80.70.68.3>;screen=yes;privacy=off

   v=0
   o=FreeSWITCH 3318025237217177383 6127129349285603966 IN IP4 80.70.68.3
   s=FreeSWITCH
   c=IN IP4 80.70.68.3
   t=0 0
   a=sendrecv
   m=audio 18182 RTP/AVP 102 8 101 13
   a=rtpmap:102 iLBC/8000
   a=fmtp:102 mode=30
   a=rtpmap:8 PCMA/8000
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-16
   a=rtpmap:13 CN/8000
   a=ptime:30
   ------------------------------------------------------------------------
recv 580 bytes from udp/[80.70.68.2]:5060 at 14:39:25.602931:
   ------------------------------------------------------------------------
   SIP/2.0 100 trying -- your call is important to us
   Via: SIP/2.0/UDP 80.70.68.3;rport=5060;branch=z9hG4bKSr07NgQtgtgZm
   From: "Alex" <sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   To: <sip:edward at sip.3fon.net>
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997646 INVITE
   Server: Sip EXpress router (2.0.0+cvs20080521 (x86_64/freebsd))
   Content-Length: 0
   Warning: 392 80.70.68.2:5060 "Noisy feedback tells:  pid=16759
req_src_ip=80.70.68.3 req_src_port=5060 in_uri=sip:edward at sip.3fon.net
out_uri=sip:Edward at 172.16.100.15:5060;rinstance=e598a23315cac44e
via_cnt==1"

   ------------------------------------------------------------------------
recv 447 bytes from udp/[80.70.68.2]:5060 at 14:39:25.666159:
   ------------------------------------------------------------------------
   SIP/2.0 180 Ringing
   Via: SIP/2.0/UDP 80.70.68.3;rport=5060;branch=z9hG4bKSr07NgQtgtgZm
   Record-Route: <sip:80.70.68.2;lr;avp=R28DBwBhY2NvdW50AwB5ZXM>
   Contact: <sip:Edward at 213.133.167.186:55348;rinstance=e598a23315cac44e>
   To: <sip:edward at sip.3fon.net>;tag=e961e62b
   From: "Alex"<sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997646 INVITE
   User-Agent: Zoiper rev.647
   Content-Length: 0

   ------------------------------------------------------------------------
send 884 bytes to udp/[80.70.68.2]:5060 at 14:39:25.666998:
   ------------------------------------------------------------------------
   SIP/2.0 180 Ringing
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK46d3.96dae041.0;rport=5060
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-de84dc00e12f87c6-1---d8754z-;rport=5060
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   To: <sip:edward at sip.3fon.net>;transport=UDP;tag=SpF6B2010aZjr
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 2 INVITE
   Contact: <sip:mod_sofia at 80.70.68.3:5060;transport=udp>
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Accept: application/sdp
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE,
SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition, timer
   Allow-Events: talk, presence, dialog, call-info, sla,
include-session-description, presence.winfo, message-summary
   Content-Length: 0

   ------------------------------------------------------------------------












recv 781 bytes from udp/[80.70.68.2]:5060 at 14:39:27.726607:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 80.70.68.3;rport=5060;branch=z9hG4bKSr07NgQtgtgZm
   Record-Route: <sip:80.70.68.2;lr;avp=R28DBwBhY2NvdW50AwB5ZXM>
   Contact: <sip:Edward at 213.133.167.186:55348;rinstance=e598a23315cac44e>
   To: <sip:edward at sip.3fon.net>;tag=e961e62b
   From: "Alex"<sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997646 INVITE
   Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY, REFER, MESSAGE,
OPTIONS, INFO
   Content-Type: application/sdp
   User-Agent: Zoiper rev.647
   Content-Length: 225

   v=0
   o=Z 0 0 IN IP4 172.16.100.15
   s=Z
   c=IN IP4 80.70.68.4
   t=0 0
   m=audio 35684 RTP/AVP 102 101
   a=rtpmap:102 iLBC/8000
   a=fmtp:102 mode=30
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-15
   a=sendrecv
   a=nortpproxy:yes
   ------------------------------------------------------------------------
send 445 bytes to udp/[80.70.68.2]:5060 at 14:39:27.727139:
   ------------------------------------------------------------------------
   ACK sip:Edward at 213.133.167.186:55348;rinstance=e598a23315cac44e SIP/2.0
   Via: SIP/2.0/UDP 80.70.68.3;rport;branch=z9hG4bKt1S0QB8XD36Hg
   Route: <sip:80.70.68.2;lr;avp=R28DBwBhY2NvdW50AwB5ZXM>
   Max-Forwards: 70
   From: "Alex" <sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   To: <sip:edward at sip.3fon.net>;tag=e961e62b
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997646 ACK
   Contact: <sip:mod_sofia at 80.70.68.3:5060>
   Content-Length: 0

   ------------------------------------------------------------------------
send 1221 bytes to udp/[80.70.68.2]:5060 at 14:39:27.733032:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK46d3.96dae041.0;rport=5060
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-de84dc00e12f87c6-1---d8754z-;rport=5060
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   To: <sip:edward at sip.3fon.net>;transport=UDP;tag=SpF6B2010aZjr
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 2 INVITE
   Contact: <sip:mod_sofia at 80.70.68.3:5060;transport=udp>
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE,
SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition, timer
   Allow-Events: talk, presence, dialog, call-info, sla,
include-session-description, presence.winfo, message-summary
   Min-SE: 120
   Content-Type: application/sdp
   Content-Disposition: session
   Content-Length: 291

   v=0
   o=FreeSWITCH 7445476403162582898 6200794377110307817 IN IP4 80.70.68.3
   s=FreeSWITCH
   c=IN IP4 80.70.68.3
   t=0 0
   a=sendrecv
   m=audio 28638 RTP/AVP 98 101 13
   a=rtpmap:98 iLBC/8000
   a=fmtp:98 mode=30
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-16
   a=rtpmap:13 CN/8000
   a=ptime:30
   ------------------------------------------------------------------------
recv 822 bytes from udp/[80.70.68.2]:5060 at 14:39:27.749337:
   ------------------------------------------------------------------------
   ACK sip:mod_sofia at 80.70.68.3:5060;transport=udp SIP/2.0
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   Via: SIP/2.0/UDP 80.70.68.2;branch=0
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-3c69317b1c51005e-1---d8754z-;rport=5060
   Max-Forwards: 16
   Contact: <sip:alex_gusak at 213.133.160.108:5060>
   To: <sip:edward at sip.3fon.net>;transport=UDP;tag=SpF6B2010aZjr
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 2 ACK
   Proxy-Authorization: Digest
username="alex_gusak",realm="sip.3fon.net",nonce="485fb59b1d6101ba5f2e74b7f7efa400567e564a",uri="sip:edward at sip.3fon.net;transport=UDP",response="a1c6bf2304a43695e77b4b3eda455d6c",algorithm=MD5
   User-Agent: Zoiper rev.647
   Content-Length: 0
   P-hint: rr-enforced

   ------------------------------------------------------------------------













recv 872 bytes from udp/[80.70.68.2]:5060 at 14:39:36.595158:
   ------------------------------------------------------------------------
   BYE sip:mod_sofia at 80.70.68.3:5060;transport=udp SIP/2.0
   Record-Route: <sip:80.70.68.2;avp=R28DBwBhY2NvdW50AwB5ZXM;lr=on>
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK56d3.1219a9f4.0
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-ea8d088a792c9a0d-1---d8754z-;rport=5060
   Max-Forwards: 16
   Contact: <sip:alex_gusak at 213.133.160.108:5060>
   To: <sip:edward at sip.3fon.net>;transport=UDP;tag=SpF6B2010aZjr
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 3 BYE
   Proxy-Authorization: Digest
username="alex_gusak",realm="sip.3fon.net",nonce="485fb59b1d6101ba5f2e74b7f7efa400567e564a",uri="sip:mod_sofia at 80.70.68.3:5060;transport=udp",response="6a5e94824d92cfdded2ab82c748366d7",algorithm=MD5
   User-Agent: Zoiper rev.647
   Content-Length: 0
   P-hint: rr-enforced
   P-RTP-Proxy: UNFORCED

   ------------------------------------------------------------------------
send 613 bytes to udp/[80.70.68.2]:5060 at 14:39:36.595570:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 80.70.68.2;branch=z9hG4bK56d3.1219a9f4.0;rport=5060
   Via: SIP/2.0/UDP
213.133.160.108:5060;branch=z9hG4bK-d8754z-ea8d088a792c9a0d-1---d8754z-;rport=5060
   From: "Alex"<sip:alex_gusak at sip.3fon.net>;transport=UDP;tag=911a4d6a
   To: <sip:edward at sip.3fon.net>;transport=UDP;tag=SpF6B2010aZjr
   Call-ID: NmFmOTEyNzk2M2I0YzY1YjgzMGI5ZDkxNmFkMDAxYWY.
   CSeq: 3 BYE
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE,
SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition, timer
   Content-Length: 0

   ------------------------------------------------------------------------
send 696 bytes to udp/[80.70.68.2]:5060 at 14:39:36.600941:
   ------------------------------------------------------------------------
   BYE sip:Edward at 213.133.167.186:55348;rinstance=e598a23315cac44e SIP/2.0
   Via: SIP/2.0/UDP 80.70.68.3;rport;branch=z9hG4bKUaKSS6r1acX4B
   Route: <sip:80.70.68.2;lr;avp=R28DBwBhY2NvdW50AwB5ZXM>
   Max-Forwards: 70
   From: "Alex" <sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   To: <sip:edward at sip.3fon.net>;tag=e961e62b
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997647 BYE
   Contact: <sip:mod_sofia at 80.70.68.3:5060>
   User-Agent: FreeSWITCH-mod_sofia/1.0.0-hacked
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE,
SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition, timer
   Reason: Q.850;cause=16;text="NORMAL_CLEARING"
   Content-Length: 0

   ------------------------------------------------------------------------
recv 439 bytes from udp/[80.70.68.2]:5060 at 14:39:36.626800:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 80.70.68.3;rport=5060;branch=z9hG4bKUaKSS6r1acX4B
   Record-Route: <sip:80.70.68.2;lr;avp=R28DBwBhY2NvdW50AwB5ZXM>
   Contact: <sip:Edward at 213.133.167.186:55348;rinstance=e598a23315cac44e>
   To: <sip:edward at sip.3fon.net>;tag=e961e62b
   From: "Alex"<sip:alex_gusak at 80.70.68.3>;tag=tZ8yDXH5XKN5K
   Call-ID: 04b7e7fd-bbd5-122b-ff86-cd5a86150e3c
   CSeq: 100997647 BYE
   User-Agent: Zoiper rev.647
   Content-Length: 0

   ------------------------------------------------------------------------






-- 
Alex Gusak




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