[This app Best viewed at 160x60 or more..] +OK log level [7] send 854 bytes to udp/[35.189.1.246]:5070 at 11:07:09.151488: ------------------------------------------------------------------------ SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 10.152.0.2:5070;branch=z9hG4bK-1bfd18b3226364df4926b07f95f96fb7;rport=5070;received=35.189.1.246 From: 1003;tag=b2ff0098 To: 7000441952458062 ;tag=HeNFDZ2a3tQFN Call-ID: 1bfd18b3226364df4926b07f95f96fb7 CSeq: 1 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Proxy-Authenticate: Digest realm="154.66.196.112", nonce="b06515ad-2c73-45f8-9846-43ad0742c0b5", algorithm=MD5, qop="auth" Content-Length: 0 ------------------------------------------------------------------------ recv 855 bytes from udp/[197.234.196.34]:5060 at 11:07:13.038660: ------------------------------------------------------------------------ INVITE sip:200@connec.connecpbx.co.za:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjR9a2dCnsiBWipr98ilpMgdAK0vULCf6d Max-Forwards: 70 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: Contact: Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18128 INVITE Allow: INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, SUBSCRIBE, NOTIFY, REFER, OPTIONS Supported: replaces, eventlist User-Agent: AT810 V2.2.0 Content-Type: application/sdp Content-Length: 258 v=0 o=ATCOM 3708248833 3708248833 IN IP4 192.168.1.140 s=ATCOM Audio Call c=IN IP4 192.168.1.140 t=0 0 m=audio 16414 RTP/AVP 18 101 a=sendrecv a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=ptime:10 ------------------------------------------------------------------------ send 380 bytes to udp/[197.234.196.34]:5060 at 11:07:13.038924: ------------------------------------------------------------------------ SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjR9a2dCnsiBWipr98ilpMgdAK0vULCf6d;received=197.234.196.34 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18128 INVITE User-Agent: FreeSWITCH Content-Length: 0 ------------------------------------------------------------------------ 2017-07-05 11:07:13.022964 [NOTICE] switch_channel.c:1104 New Channel sofia/internal/201@connec.connecpbx.co.za:5060 [0773cd3e-76d5-47ce-bf09-b619c9b71096] 2017-07-05 11:07:13.022964 [DEBUG] switch_core_state_machine.c:584 (sofia/internal/201@connec.connecpbx.co.za:5060) Running State Change CS_NEW (Cur 2 Tot 8) 2017-07-05 11:07:13.022964 [DEBUG] sofia.c:9837 sofia/internal/201@connec.connecpbx.co.za:5060 receiving invite from 197.234.196.34:5060 version: 1.6.18 -35-6e79667 64bit 2017-07-05 11:07:13.022964 [DEBUG] sofia.c:10008 IP 197.234.196.34 Rejected by acl "domains". Falling back to Digest auth. send 893 bytes to udp/[197.234.196.34]:5060 at 11:07:13.039792: ------------------------------------------------------------------------ SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjR9a2dCnsiBWipr98ilpMgdAK0vULCf6d;received=197.234.196.34 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: ;tag=jQe8etKe03D2g Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18128 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Proxy-Authenticate: Digest realm="connec.connecpbx.co.za", nonce="3bf2a49f-df53-4ce4-b1a9-9adede39b0df", algorithm=MD5, qop="auth" Content-Length: 0 ------------------------------------------------------------------------ 2017-07-05 11:07:13.022964 [DEBUG] sofia.c:2334 detaching session 0773cd3e-76d5-47ce-bf09-b619c9b71096 2017-07-05 11:07:13.022964 [WARNING] sofia_reg.c:1792 SIP auth challenge (INVITE) on sofia profile 'internal' for [200@connec.connecpbx.co.za] from ip 197.234.196.34 2017-07-05 11:07:13.022964 [DEBUG] switch_core_state_machine.c:603 (sofia/internal/201@connec.connecpbx.co.za:5060) State NEW recv 395 bytes from udp/[197.234.196.34]:5060 at 11:07:13.061245: ------------------------------------------------------------------------ ACK sip:200@connec.connecpbx.co.za:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjR9a2dCnsiBWipr98ilpMgdAK0vULCf6d Max-Forwards: 70 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: ;tag=jQe8etKe03D2g Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18128 ACK Content-Length: 0 ------------------------------------------------------------------------ recv 1146 bytes from udp/[197.234.196.34]:5060 at 11:07:13.062541: ------------------------------------------------------------------------ INVITE sip:200@connec.connecpbx.co.za:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjiJtoUyv0DgwpJXHNVY-PeyzsR0FZ4whe Max-Forwards: 70 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: Contact: Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18129 INVITE Allow: INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, SUBSCRIBE, NOTIFY, REFER, OPTIONS Supported: replaces, eventlist User-Agent: AT810 V2.2.0 Proxy-Authorization: Digest username="201", realm="connec.connecpbx.co.za", nonce="3bf2a49f-df53-4ce4-b1a9-9adede39b0df", uri="sip:200@connec.connecpbx.co.za:5060", response="099339b50ad523d3f7e048ada39c31bb", algorithm=MD5, cnonce="7UfS2hPV4GUypUcNyO2058eVPv4iGSLb", qop=auth, nc=00000001 Content-Type: application/sdp Content-Length: 258 v=0 o=ATCOM 3708248833 3708248833 IN IP4 192.168.1.140 s=ATCOM Audio Call c=IN IP4 192.168.1.140 t=0 0 m=audio 16414 RTP/AVP 18 101 a=sendrecv a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=ptime:10 ------------------------------------------------------------------------ send 380 bytes to udp/[197.234.196.34]:5060 at 11:07:13.062732: ------------------------------------------------------------------------ SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjiJtoUyv0DgwpJXHNVY-PeyzsR0FZ4whe;received=197.234.196.34 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18129 INVITE User-Agent: FreeSWITCH Content-Length: 0 ------------------------------------------------------------------------ 2017-07-05 11:07:13.042946 [DEBUG] sofia.c:2442 Re-attaching to session 0773cd3e-76d5-47ce-bf09-b619c9b71096 2017-07-05 11:07:13.062943 [DEBUG] sofia.c:9837 sofia/internal/201@connec.connecpbx.co.za:5060 receiving invite from 197.234.196.34:5060 version: 1.6.18 -35-6e79667 64bit 2017-07-05 11:07:13.062943 [DEBUG] sofia.c:10008 IP 197.234.196.34 Rejected by acl "domains". Falling back to Digest auth. 2017-07-05 11:07:13.082945 [DEBUG] sofia.c:11132 Setting NAT mode based on via received 2017-07-05 11:07:13.082945 [DEBUG] sofia.c:7048 Channel sofia/internal/201@connec.connecpbx.co.za:5060 entering state [received][100] 2017-07-05 11:07:13.082945 [DEBUG] sofia.c:7058 Remote SDP: v=0 o=ATCOM 3708248833 3708248833 IN IP4 192.168.1.140 s=ATCOM Audio Call c=IN IP4 192.168.1.140 t=0 0 m=audio 16414 RTP/AVP 18 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=ptime:10 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4445 Audio Codec Compare [G729:18:8000:10:8000:1]/[G722:9:8000:20:64000:1] 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4445 Audio Codec Compare [G729:18:8000:10:8000:1]/[PCMU:0:8000:20:64000:1] 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4445 Audio Codec Compare [G729:18:8000:10:8000:1]/[PCMA:8:8000:20:64000:1] 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4445 Audio Codec Compare [G729:18:8000:10:8000:1]/[GSM:3:8000:20:13200:1] 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4361 Set telephone-event payload to 101@8000 2017-07-05 11:07:13.082945 [DEBUG] switch_core_media.c:4763 sofia/internal/201@connec.connecpbx.co.za:5060 Set 2833 dtmf send payload to 101 recv payload to 101 2017-07-05 11:07:13.082945 [NOTICE] sofia.c:7529 Hangup sofia/internal/201@connec.connecpbx.co.za:5060 [CS_NEW] [INCOMPATIBLE_DESTINATION] 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:584 (sofia/internal/201@connec.connecpbx.co.za:5060) Running State Change CS_HANGUP (Cur 2 Tot 8) 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:850 (sofia/internal/201@connec.connecpbx.co.za:5060) Callstate Change DOWN -> HANGUP 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:852 (sofia/internal/201@connec.connecpbx.co.za:5060) State HANGUP 2017-07-05 11:07:13.082945 [DEBUG] mod_sofia.c:438 Channel sofia/internal/201@connec.connecpbx.co.za:5060 hanging up, cause: INCOMPATIBLE_DESTINATION 2017-07-05 11:07:13.082945 [DEBUG] mod_sofia.c:577 Responding to INVITE with: 488 send 918 bytes to udp/[197.234.196.34]:5060 at 11:07:13.092178: ------------------------------------------------------------------------ SIP/2.0 488 Not Acceptable Here Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjiJtoUyv0DgwpJXHNVY-PeyzsR0FZ4whe;received=197.234.196.34 Max-Forwards: 70 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: ;tag=K070gN4HXc4mc Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18129 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Reason: Q.850;cause=88;text="INCOMPATIBLE_DESTINATION" Content-Length: 0 Remote-Party-ID: "200" ;party=calling;privacy=off;screen=no ------------------------------------------------------------------------ 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:60 sofia/internal/201@connec.connecpbx.co.za:5060 Standard HANGUP, cause: INCOMPATIBLE_DESTINATION 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:852 (sofia/internal/201@connec.connecpbx.co.za:5060) State HANGUP going to sleep 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:619 (sofia/internal/201@connec.connecpbx.co.za:5060) State Change CS_HANGUP -> CS_REPORTING 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:584 (sofia/internal/201@connec.connecpbx.co.za:5060) Running State Change CS_REPORTING (Cur 2 Tot 8) 2017-07-05 11:07:13.082945 [DEBUG] switch_core_state_machine.c:938 (sofia/internal/201@connec.connecpbx.co.za:5060) State REPORTING recv 395 bytes from udp/[197.234.196.34]:5060 at 11:07:13.114165: ------------------------------------------------------------------------ ACK sip:200@connec.connecpbx.co.za:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.140:5060;branch=z9hG4bKPjiJtoUyv0DgwpJXHNVY-PeyzsR0FZ4whe Max-Forwards: 70 From: "Stefan Lourens" ;tag=01wvJ7kAfFJta5toyofj3jP.219p0n66 To: ;tag=K070gN4HXc4mc Call-ID: CyipLjmvrvNzcVmAWqfc0V23d9k7ZyKP CSeq: 18129 ACK Content-Length: 0 ------------------------------------------------------------------------ 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:174 sofia/internal/201@connec.connecpbx.co.za:5060 Standard REPORTING, cause: INCOMPATIBLE_DESTINATION 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:938 (sofia/internal/201@connec.connecpbx.co.za:5060) State REPORTING going to sleep 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:610 (sofia/internal/201@connec.connecpbx.co.za:5060) State Change CS_REPORTING -> CS_DESTROY 2017-07-05 11:07:13.142945 [DEBUG] switch_core_session.c:1664 Session 8 (sofia/internal/201@connec.connecpbx.co.za:5060) Locked, Waiting on external entities 2017-07-05 11:07:13.142945 [NOTICE] switch_core_session.c:1682 Session 8 (sofia/internal/201@connec.connecpbx.co.za:5060) Ended 2017-07-05 11:07:13.142945 [NOTICE] switch_core_session.c:1686 Close Channel sofia/internal/201@connec.connecpbx.co.za:5060 [CS_DESTROY] 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:741 (sofia/internal/201@connec.connecpbx.co.za:5060) Running State Change CS_DESTROY (Cur 1 Tot 8) 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:751 (sofia/internal/201@connec.connecpbx.co.za:5060) State DESTROY 2017-07-05 11:07:13.142945 [DEBUG] mod_sofia.c:343 sofia/internal/201@connec.connecpbx.co.za:5060 SOFIA DESTROY 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:181 sofia/internal/201@connec.connecpbx.co.za:5060 Standard DESTROY 2017-07-05 11:07:13.142945 [DEBUG] switch_core_state_machine.c:751 (sofia/internal/201@connec.connecpbx.co.za:5060) State DESTROY going to sleep send 854 bytes to udp/[35.189.1.246]:5070 at 11:07:13.152042: ------------------------------------------------------------------------ SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 10.152.0.2:5070;branch=z9hG4bK-1bfd18b3226364df4926b07f95f96fb7;rport=5070;received=35.189.1.246 From: 1003;tag=b2ff0098 To: 7000441952458062 ;tag=HeNFDZ2a3tQFN Call-ID: 1bfd18b3226364df4926b07f95f96fb7 CSeq: 1 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Proxy-Authenticate: Digest realm="154.66.196.112", nonce="b06515ad-2c73-45f8-9846-43ad0742c0b5", algorithm=MD5, qop="auth" Content-Length: 0 ------------------------------------------------------------------------ 2017-07-05 11:07:15.662950 [WARNING] switch_core_state_machine.c:687 ea291437-4190-47a8-b7f9-246c6943a5d5 sofia/internal/1003@154.66.196.112 Abandoned 2017-07-05 11:07:15.662950 [NOTICE] switch_core_state_machine.c:690 Hangup sofia/internal/1003@154.66.196.112 [CS_NEW] [WRONG_CALL_STATE] 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:584 (sofia/internal/1003@154.66.196.112) Running State Change CS_HANGUP (Cur 1 Tot 8) 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:850 (sofia/internal/1003@154.66.196.112) Callstate Change DOWN -> HANGUP 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:852 (sofia/internal/1003@154.66.196.112) State HANGUP 2017-07-05 11:07:15.662950 [DEBUG] mod_sofia.c:438 Channel sofia/internal/1003@154.66.196.112 hanging up, cause: WRONG_CALL_STATE 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:60 sofia/internal/1003@154.66.196.112 Standard HANGUP, cause: WRONG_CALL_STATE 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:852 (sofia/internal/1003@154.66.196.112) State HANGUP going to sleep 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:619 (sofia/internal/1003@154.66.196.112) State Change CS_HANGUP -> CS_REPORTING 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:584 (sofia/internal/1003@154.66.196.112) Running State Change CS_REPORTING (Cur 1 Tot 8) 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:938 (sofia/internal/1003@154.66.196.112) State REPORTING 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:174 sofia/internal/1003@154.66.196.112 Standard REPORTING, cause: WRONG_CALL_STATE 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:938 (sofia/internal/1003@154.66.196.112) State REPORTING going to sleep 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:610 (sofia/internal/1003@154.66.196.112) State Change CS_REPORTING -> CS_DESTROY 2017-07-05 11:07:15.662950 [DEBUG] switch_core_session.c:1664 Session 7 (sofia/internal/1003@154.66.196.112) Locked, Waiting on external entities 2017-07-05 11:07:15.662950 [NOTICE] switch_core_session.c:1682 Session 7 (sofia/internal/1003@154.66.196.112) Ended 2017-07-05 11:07:15.662950 [NOTICE] switch_core_session.c:1686 Close Channel sofia/internal/1003@154.66.196.112 [CS_DESTROY] 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:741 (sofia/internal/1003@154.66.196.112) Running State Change CS_DESTROY (Cur 0 Tot 8) 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:751 (sofia/internal/1003@154.66.196.112) State DESTROY 2017-07-05 11:07:15.662950 [DEBUG] mod_sofia.c:343 sofia/internal/1003@154.66.196.112 SOFIA DESTROY 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:181 sofia/internal/1003@154.66.196.112 Standard DESTROY 2017-07-05 11:07:15.662950 [DEBUG] switch_core_state_machine.c:751 (sofia/internal/1003@154.66.196.112) State DESTROY going to sleep send 854 bytes to udp/[35.189.1.246]:5070 at 11:07:17.152819: ------------------------------------------------------------------------ SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 10.152.0.2:5070;branch=z9hG4bK-1bfd18b3226364df4926b07f95f96fb7;rport=5070;received=35.189.1.246 From: 1003;tag=b2ff0098 To: 7000441952458062 ;tag=HeNFDZ2a3tQFN Call-ID: 1bfd18b3226364df4926b07f95f96fb7 CSeq: 1 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Proxy-Authenticate: Digest realm="154.66.196.112", nonce="b06515ad-2c73-45f8-9846-43ad0742c0b5", algorithm=MD5, qop="auth" Content-Length: 0 ------------------------------------------------------------------------ send 854 bytes to udp/[35.189.1.246]:5070 at 11:07:21.154476: ------------------------------------------------------------------------ SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 10.152.0.2:5070;branch=z9hG4bK-1bfd18b3226364df4926b07f95f96fb7;rport=5070;received=35.189.1.246 From: 1003;tag=b2ff0098 To: 7000441952458062 ;tag=HeNFDZ2a3tQFN Call-ID: 1bfd18b3226364df4926b07f95f96fb7 CSeq: 1 INVITE User-Agent: FreeSWITCH Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Proxy-Authenticate: Digest realm="154.66.196.112", nonce="b06515ad-2c73-45f8-9846-43ad0742c0b5", algorithm=MD5, qop="auth" Content-Length: 0 ------------------------------------------------------------------------