I cannot find any network problems. interface: any filter: (ip or ip6) and ( net 192.168.1.12 or net 192.168.1.11 ) # U 192.168.1.12:2048 -> 192.168.1.4:5060 INVITE sip:240@entwick1;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-v4ybiqjk8t4e;rport. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 1 INVITE. Max-Forwards: 70. Contact: <sip:220@192.168.1.12:2048;line=9yhon28z>;reg-id=1. P-Key-Flags: keys="3". User-Agent: snom300/7.3.30. Accept: application/sdp. Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO. Allow-Events: talk, hold, refer, call-info. Supported: timer, 100rel, replaces, from-change. Session-Expires: 3600;refresher=uas. Min-SE: 90. Content-Type: application/sdp. Content-Length: 218. . v=0. o=root 930692018 930692018 IN IP4 192.168.1.12. s=call. c=IN IP4 192.168.1.12. t=0 0. m=audio 49908 RTP/AVP 8 101. a=rtpmap:8 pcma/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=sendrecv. # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-v4ybiqjk8t4e;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 1 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 407 Proxy Authentication Required. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-v4ybiqjk8t4e;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>;tag=rFZa6489Z27rK. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 1 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Proxy-Authenticate: Digest realm="entwick1", nonce="b755765a-a341-4070-a981-dff43e8f7d08", algorithm=MD5, qop="auth". Content-Length: 0. . # U 192.168.1.12:2048 -> 192.168.1.4:5060 ACK sip:240@entwick1;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-v4ybiqjk8t4e;rport. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>;tag=rFZa6489Z27rK. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 1 ACK. Max-Forwards: 70. Contact: <sip:220@192.168.1.12:2048;line=9yhon28z>;reg-id=1. Content-Length: 0. . # U 192.168.1.12:2048 -> 192.168.1.4:5060 INVITE sip:240@entwick1;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 INVITE. Max-Forwards: 70. Contact: <sip:220@192.168.1.12:2048;line=9yhon28z>;reg-id=1. P-Key-Flags: keys="3". User-Agent: snom300/7.3.30. Accept: application/sdp. Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO. Allow-Events: talk, hold, refer, call-info. Supported: timer, 100rel, replaces, from-change. Session-Expires: 3600;refresher=uas. Min-SE: 90. Proxy-Authorization: Digest username="220",realm="entwick1",nonce="b755765a-a341-4070-a981-dff43e8f7d08",uri="sip:240@entwick1;user=phone",qop=auth,nc=00000001,cnonce="408b0a1e",response="3261384c8f62187a6486c1fee434d06a",algorithm=MD5. Content-Type: application/sdp. Content-Length: 218. . v=0. o=root 930692018 930692018 IN IP4 192.168.1.12. s=call. c=IN IP4 192.168.1.12. t=0 0. m=audio 49908 RTP/AVP 8 101. a=rtpmap:8 pcma/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=sendrecv. # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>;tag=Srr37ZSDXByBF. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 INVITE. Contact: <sip:240@192.168.1.4:5060;transport=udp>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0. Remote-Party-ID: "240" <sip:240@entwick1>;party=calling;privacy=off;screen=no. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 INVITE sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Session-Expires: 120;refresher=uac. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 233. P-Key-Flags: keys="3". X-FS-Support: update_display,send_info. Remote-Party-ID: "User 220" <sip:220@entwick1>;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1328729538 1328729539 IN IP4 192.168.1.4. s=FreeSWITCH. c=IN IP4 192.168.1.4. t=0 0. m=audio 22000 RTP/AVP 8 0 98 3 18 101 13. a=rtpmap:98 SPEEX/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. # U 192.168.1.4:5060 -> 192.168.1.11:5060 INVITE sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Session-Expires: 120;refresher=uac. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 233. P-Key-Flags: keys="3". X-FS-Support: update_display,send_info. Remote-Party-ID: "User 220" <sip:220@entwick1>;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1328731870 1328731871 IN IP4 192.168.1.4. s=FreeSWITCH. c=IN IP4 192.168.1.4. t=0 0. m=audio 19668 RTP/AVP 8 0 98 3 18 101 13. a=rtpmap:98 SPEEX/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. # U 192.168.1.4:5060 -> 192.168.1.11:5060 INVITE sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK6Z7Nj757v5XSp. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=vK4DDHcrm603H. To: <sip:240@192.168.1.11:5060>. Call-ID: ad5660f4-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Session-Expires: 120;refresher=uac. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 233. P-Key-Flags: keys="3". X-FS-Support: update_display,send_info. Remote-Party-ID: "User 220" <sip:220@entwick1>;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1328721426 1328721427 IN IP4 192.168.1.4. s=FreeSWITCH. c=IN IP4 192.168.1.4. t=0 0. m=audio 30112 RTP/AVP 8 0 98 3 18 101 13. a=rtpmap:98 SPEEX/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. # U 192.168.1.4:5060 -> 192.168.1.11:5060 INVITE sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK780em2pBtemcj. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=XvX6ecXUHFQpD. To: <sip:240@192.168.1.11:5060>. Call-ID: ad566b4a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Session-Expires: 120;refresher=uac. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 233. P-Key-Flags: keys="3". X-FS-Support: update_display,send_info. Remote-Party-ID: "User 220" <sip:220@entwick1>;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1328730428 1328730429 IN IP4 192.168.1.4. s=FreeSWITCH. c=IN IP4 192.168.1.4. t=0 0. m=audio 21110 RTP/AVP 8 0 98 3 18 101 13. a=rtpmap:98 SPEEX/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>;tag=iN29e6PanzlAC2JA. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK6Z7Nj757v5XSp. Call-ID: ad5660f4-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=vK4DDHcrm603H. To: <sip:240@192.168.1.11:5060>;tag=2Urps2fOoZQSDiid. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK6Z7Nj757v5XSp. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=vK4DDHcrm603H. To: <sip:240@192.168.1.11:5060>;tag=2Urps2fOoZQSDiid. Call-ID: ad5660f4-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 INVITE sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK780em2pBtemcj. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=XvX6ecXUHFQpD. To: <sip:240@192.168.1.11:5060>. Call-ID: ad566b4a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Session-Expires: 120;refresher=uac. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 233. P-Key-Flags: keys="3". X-FS-Support: update_display,send_info. Remote-Party-ID: "User 220" <sip:220@entwick1>;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1328730428 1328730429 IN IP4 192.168.1.4. s=FreeSWITCH. c=IN IP4 192.168.1.4. t=0 0. m=audio 21110 RTP/AVP 8 0 98 3 18 101 13. a=rtpmap:98 SPEEX/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK780em2pBtemcj. Call-ID: ad566b4a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=XvX6ecXUHFQpD. To: <sip:240@192.168.1.11:5060>;tag=qh5PsDcfdulD0LlQ. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK780em2pBtemcj. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=XvX6ecXUHFQpD. To: <sip:240@192.168.1.11:5060>;tag=qh5PsDcfdulD0LlQ. Call-ID: ad566b4a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK5peXgcN4Zv76a. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=UaBNBpUmQXaHp. To: <sip:240@192.168.1.11:5060>;tag=vrAASGKzlwRxb5pm. Call-ID: ad56546a-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 OPTIONS sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK8Ht7NX7eQQaZD. Max-Forwards: 70. From: <sip:mod_sofia@192.168.1.4:5060>;tag=y5pZg7DZerD9r. To: <sip:240@entwick1>. Call-ID: b0fa8901-cd61-122f-8d91-001966eeb846. CSeq: 24029141 OPTIONS. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.12:2048 OPTIONS sip:220@192.168.1.12:2048;line=9yhon28z SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK9tK0Qrrjm00HS. Max-Forwards: 70. From: <sip:mod_sofia@192.168.1.4:5060>;tag=Zegrj2y2B13Um. To: <sip:220@entwick1>. Call-ID: b0fa9032-cd61-122f-8d91-001966eeb846. CSeq: 24029142 OPTIONS. Contact: <sip:mod_sofia@192.168.1.4:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0. . # U 192.168.1.12:2048 -> 192.168.1.4:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.1.4;rport=5060;branch=z9hG4bK9tK0Qrrjm00HS. From: <sip:mod_sofia@192.168.1.4:5060>;tag=Zegrj2y2B13Um. To: <sip:220@entwick1>. Call-ID: b0fa9032-cd61-122f-8d91-001966eeb846. CSeq: 24029142 OPTIONS. Contact: <sip:220@192.168.1.12:2048;line=9yhon28z>;reg-id=1. User-Agent: snom300/7.3.30. Accept-Language: en. Accept: application/sdp. Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO. Allow-Events: talk, hold, refer, call-info. Supported: timer, 100rel, replaces, from-change. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 486 Busy Here. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK8Ht7NX7eQQaZD. Call-ID: b0fa8901-cd61-122f-8d91-001966eeb846. CSeq: 24029141 OPTIONS. From: <sip:mod_sofia@192.168.1.4:5060>;tag=y5pZg7DZerD9r. To: <sip:240@entwick1>;tag=4rjgSs2dsNvcVyjW. Contact: <sip:240@192.168.1.11:5060>. Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REGISTER, REFER, NOTIFY, INFO, PRACK, UPDATE. Accept: application/sdp. Accept-Encoding: identity. Accept-Language: en. Supported: 100rel, replaces. Content-Type: application/sdp. Content-Length: 267. . v=0. o=240 32101693 45791413 IN IP4 192.168.1.11. s=SIP CALL. c=IN IP4 192.168.1.11. t=0 0. m=audio 6000 RTP/AVP 8 0 3 18 101. a=rtpmap:8 PCMA/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:3 GSM/8000. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. # U 192.168.1.12:2048 -> 192.168.1.4:5060 CANCEL sip:240@entwick1;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 CANCEL. Max-Forwards: 70. Reason: SIP;cause=487;text="Request terminated by user". Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>;tag=Srr37ZSDXByBF. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 CANCEL. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.12:2048 SIP/2.0 487 Request Terminated. Via: SIP/2.0/UDP 192.168.1.12:2048;branch=z9hG4bK-eyrl6ghugshz;rport=2048. From: "User 220" <sip:220@entwick1>;tag=vx1czcrfys. To: <sip:240@entwick1;user=phone>;tag=Srr37ZSDXByBF. Call-ID: 3c28bad818ad-q0ms60zsfpst. CSeq: 2 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d2c9fb5 2012-02-06 14-12-22 -0600. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 CANCEL sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 CANCEL. Reason: FreeSWITCH;cause=487;text="ORIGINATOR_CANCEL". Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 CANCEL. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>;tag=iN29e6PanzlAC2JA. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.11:5060 -> 192.168.1.4:5060 SIP/2.0 487 Request Terminated. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 INVITE. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>;tag=iN29e6PanzlAC2JA. Contact: <sip:240@192.168.1.11:5060>. Content-Length: 0. . # U 192.168.1.4:5060 -> 192.168.1.11:5060 ACK sip:240@192.168.1.11:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.1.4;rport;branch=z9hG4bK4DN4eH402KHmF. Max-Forwards: 69. From: "User 220" <sip:220@entwick1>;tag=t1Hv9taHtmmya. To: <sip:240@192.168.1.11:5060>;tag=iN29e6PanzlAC2JA. Call-ID: ad561287-cd61-122f-8d91-001966eeb846. CSeq: 24039705 ACK. Content-Length: 0. . # Am 08.02.2012 18:36, schrieb Michael Collins:
It was found that freeswitch performs multiple INVITES. But why?
One reason why multiple invites are sent out is if FreeSWITCH doesn't receive anything back. This could mean the far end is down for some reason or that there is a network issue between FS and the other endpoint. NAT is a common issue in this sort of configuration. I recommend that you look at SIP traces on each end of the SIP dialog.
-MC
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