[2015-09-03 23:36:11] DEBUG[1654] acl.c: For destination '20.1.1.170', our source address is '20.1.1.58'.
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Setting SIP_TRANSPORT_UDP with address 20.1.1.58:5060
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: SIP call-id changed from '37d562dd4a30907c6e36b2ee7e02e481@20.1.1.58:5060' to '1ba54ede2cd9989421b5263872d31e74@20.1.1.58:5060'
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Initializing initreq for method OPTIONS - callid 1ba54ede2cd9989421b5263872d31e74@20.1.1.58:5060
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Trying to put 'OPTIONS sip' onto UDP socket destined for 20.1.1.170:5060
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: = Looking for  Call ID: 1ba54ede2cd9989421b5263872d31e74@20.1.1.58:5060 (Checking To) --From tag as1614a3fe --To-tag 312229329  
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Stopping retransmission on '1ba54ede2cd9989421b5263872d31e74@20.1.1.58:5060' of Request 102: Match Found
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Destroying SIP dialog 1ba54ede2cd9989421b5263872d31e74@20.1.1.58:5060
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: = Looking for  Call ID: 7678b500-5e911fbb-2f901-aa010114@20.1.1.170 (Checking From) --From tag 708957~4ab333c0-314e-1172-16a8-eca8c1530263-31438922 --To-tag   
[2015-09-03 23:36:11] DEBUG[1654] acl.c: For destination '20.1.1.170', our source address is '20.1.1.58'.
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Setting SIP_TRANSPORT_UDP with address 20.1.1.58:5060
[2015-09-03 23:36:11] DEBUG[1654] netsock2.c: Splitting '20.1.1.170:5060' into...
[2015-09-03 23:36:11] DEBUG[1654] netsock2.c: ...host '20.1.1.170' and port '5060'.
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: Allocating new SIP dialog for 7678b500-5e911fbb-2f901-aa010114@20.1.1.170 - INVITE (No RTP)
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] chan_sip.c: **** Received INVITE (5) - Command in SIP INVITE
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Begin: parsing SIP "Supported: timer,resource-priority,replaces"
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found SIP option: -timer-
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Matched SIP option: timer
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found SIP option: -resource-priority-
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Matched SIP option: resource-priority
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found SIP option: -replaces-
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Matched SIP option: replaces
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Begin: parsing SIP "Supported: X-cisco-srtp-fallback,X-cisco-original-called"
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found SIP option: -X-cisco-srtp-fallback-
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found private SIP option, not supported: X-cisco-srtp-fallback
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found SIP option: -X-cisco-original-called-
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] sip/reqresp_parser.c: Found private SIP option, not supported: X-cisco-original-called
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] netsock2.c: Splitting '20.1.1.170:5060' into...
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] netsock2.c: ...host '20.1.1.170' and port '5060'.
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] netsock2.c: Splitting '20.1.1.170' into...
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] netsock2.c: ...host '20.1.1.170' and port ''.
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] chan_sip.c: Trying to put 'SIP/2.0 401' onto UDP socket destined for 20.1.1.170:5060
[2015-09-03 23:36:11] DEBUG[1654] chan_sip.c: = Looking for  Call ID: 7678b500-5e911fbb-2f901-aa010114@20.1.1.170 (Checking From) --From tag 708957~4ab333c0-314e-1172-16a8-eca8c1530263-31438922 --To-tag as70bdad33  
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] chan_sip.c: **** Received ACK (6) - Command in SIP ACK
[2015-09-03 23:36:11] DEBUG[1654][C-0000001b] chan_sip.c: Stopping retransmission on '7678b500-5e911fbb-2f901-aa010114@20.1.1.170' of Response 101: Match Found