# U linphone_ip:46373 -> freeswitch_ip_address:5060 INVITE sip:1000@freeswitch_ip_address SIP/2.0. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.wu34Vty9R;rport. From: ;tag=T7Oti-pIH. To: sip:1000@freeswitch_ip_address. CSeq: 20 INVITE. Call-ID: IhjiX3dwya. Max-Forwards: 70. Supported: outbound. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE. Content-Type: application/sdp. Content-Length: 869. Contact: ;+sip.instance="". User-Agent: Linphone_iPhone7,2_iOS9.1/2.4-3-g94e1037 (belle-sip/1.4.1). . v=0. o=1002 3337 126 IN IP4 192.168.5.146. s=Talk. c=IN IP4 192.168.5.146. b=AS:380. t=0 0. a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics. m=audio 7286 RTP/SAVP 96 97 98 99 0 8 101 100 102. a=rtpmap:96 opus/48000/2. a=fmtp:96 useinbandfec=1. a=rtpmap:97 SILK/16000. a=rtpmap:98 speex/16000. a=fmtp:98 vbr=on. a=rtpmap:99 speex/8000. a=fmtp:99 vbr=on. a=rtpmap:101 telephone-event/48000. a=rtpmap:100 telephone-event/16000. a=rtpmap:102 telephone-event/8000. a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:2QEye591aHIqRwdLODMrr8ieQBBHl5WdIizE0NH2. a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:d6K8m+tGEMvkEbRm5Zzy6KQkrlwS78l7wGufgx8S. a=crypto:3 AES_CM_256_HMAC_SHA1_80 inline:PMvGinW3fpIejXOWDskUNWUhBX1KRlhrPkbrP0Nv4L/+My1V7w2r/ALSyLhkPg==. a=crypto:4 AES_CM_256_HMAC_SHA1_32 inline:ZsdwMe0D+RauGydaQ90qG7pfOvdW6m9cxjbBhJ5AUaNSTecse9Sk3lRzlgZuSA==. # U freeswitch_ip_address:5060 -> linphone_ip:46373 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.wu34Vty9R;rport=46373;received=linphone_ip. From: ;tag=T7Oti-pIH. To: sip:1000@freeswitch_ip_address. Call-ID: IhjiX3dwya. CSeq: 20 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.4.21~64bit. Content-Length: 0. . # U freeswitch_ip_address:5060 -> linphone_ip:46373 SIP/2.0 407 Proxy Authentication Required. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.wu34Vty9R;rport=46373;received=linphone_ip. From: ;tag=T7Oti-pIH. To: ;tag=XK6jSv113rSFD. Call-ID: IhjiX3dwya. CSeq: 20 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.4.21~64bit. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY. Supported: timer, path, replaces. Allow-Events: talk, hold, conference, refer. Proxy-Authenticate: Digest realm="freeswitch_ip_address", nonce="672c38e4-82f9-11e5-85b8-8341447a2074", algorithm=MD5, qop="auth". Content-Length: 0. . # U linphone_ip:46373 -> freeswitch_ip_address:5060 ACK sip:1000@freeswitch_ip_address SIP/2.0. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.wu34Vty9R;rport. Call-ID: IhjiX3dwya. From: ;tag=T7Oti-pIH. To: ;tag=XK6jSv113rSFD. Contact: ;+sip.instance="". Max-Forwards: 70. CSeq: 20 ACK. . # U linphone_ip:46373 -> freeswitch_ip_address:5060 INVITE sip:1000@freeswitch_ip_address SIP/2.0. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.6qqHie0jI;rport. From: ;tag=T7Oti-pIH. To: sip:1000@freeswitch_ip_address. CSeq: 21 INVITE. Call-ID: IhjiX3dwya. Max-Forwards: 70. Supported: outbound. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE. Content-Type: application/sdp. Content-Length: 869. Contact: ;+sip.instance="". User-Agent: Linphone_iPhone7,2_iOS9.1/2.4-3-g94e1037 (belle-sip/1.4.1). Proxy-Authorization: Digest realm="freeswitch_ip_address", nonce="672c38e4-82f9-11e5-85b8-8341447a2074", algorithm=MD5, username="1002", uri="sip:1000@freeswitch_ip_address", response="4917e1df6d262a8c a1b380880c32bece", cnonce="72980da5", nc=00000001, qop=auth. . v=0. o=1002 3337 126 IN IP4 192.168.5.146. s=Talk. c=IN IP4 192.168.5.146. b=AS:380. t=0 0. a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics. m=audio 7286 RTP/SAVP 96 97 98 99 0 8 101 100 102. a=rtpmap:96 opus/48000/2. a=fmtp:96 useinbandfec=1. a=rtpmap:97 SILK/16000. a=rtpmap:98 speex/16000. a=fmtp:98 vbr=on. a=rtpmap:99 speex/8000. a=fmtp:99 vbr=on. a=rtpmap:101 telephone-event/48000. a=rtpmap:100 telephone-event/16000. a=rtpmap:102 telephone-event/8000. a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:2QEye591aHIqRwdLODMrr8ieQBBHl5WdIizE0NH2. a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:d6K8m+tGEMvkEbRm5Zzy6KQkrlwS # U freeswitch_ip_address:5060 -> linphone_ip:46373 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 192.168.5.146:49753;branch=z9hG4bK.6qqHie0jI;rport=46373;received=linphone_ip. From: ;tag=T7Oti-pIH. To: sip:1000@freeswitch_ip_address. Call-ID: IhjiX3dwya. CSeq: 21 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.4.21~64bit. Content-Length: 0. . # U freeswitch_ip_address:5060 -> linphone_ip:7934 INVITE sip:1000@linphone_ip:7934;app-id=622464153529;pn-type=google;pn-tok=APA91bGn_dfOuanH4LuoRjnOlklsuO1QGDwtO6qO_eDiH8sAnSRd98JlkCDc0adaz4trHOn6J8LHJysimvEguCP6j6Ct4UDtyw1gubW5OeJIH0YcK RoshhI SIP/2.0. Via: SIP/2.0/UDP freeswitch_ip_address;rport;branch=z9hG4bKraycKmHDQ7UmS. Max-Forwards: 69. From: "Extension 1002" ;tag=Z5r4vj38Xa6mm. To: . Call-ID: 3e9790cc-fd9c-1233-2891-000c291961fa. CSeq: 82986105 INVITE. Contact: . User-Agent: FreeSWITCH-mod_sofia/1.4.21~64bit. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY. Supported: timer, path, replaces. Allow-Events: talk, hold, conference, refer. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 1956. X-FS-Support: update_display,send_info. Remote-Party-ID: "Extension 1002" ;party=calling;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1446625829 1446625830 IN IP4 freeswitch_ip_address. s=FreeSWITCH. c=IN IP4 freeswitch_ip_address. t=0 0. m=audio 18510 RTP/SAVP 0 8 101 13. a=rtpmap:0 PCMU/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=crypto:1 AEAD_AES_256_GCM_8 inline:jotCMStRYMvwWT18wMqmgwAu6mVBKaIkENGh8HLF0UYFEcwGnoQpM0m4juU. a=crypto:2 AEAD_AES_128_G