I using pjsua2 to make a softphone in C++, but when the lib try send a invite the request is make with a port out of range. The last two char is repeated and the app never register. This not ocorr in all enviroment, has network with NAT the same app is ok. In this post: https://stackoverflow.com/questions/52084066/failure-when-try-register-pjsua2-over-nat has a code with a implementation of pjsua2 if necessary. 18:01:00.201 os_core_win32. !pjlib 2.8 for win32 initialized 18:01:23.450 sip_endpoint.c .Creating endpoint instance... 18:01:23.450 pjlib .select() I/O Queue created (273448B0) 18:01:23.450 sip_endpoint.c .Module "mod-msg-print" registered 18:01:23.450 sip_transport. .Transport manager created. 18:01:23.450 pjsua_core.c .PJSUA state changed: NULL --> CREATED 18:01:23.450 sip_endpoint.c .Module "mod-pjsua-log" registered 18:01:23.450 sip_endpoint.c .Module "mod-tsx-layer" registered 18:01:23.450 sip_endpoint.c .Module "mod-stateful-util" registered 18:01:23.450 sip_endpoint.c .Module "mod-ua" registered 18:01:23.450 sip_endpoint.c .Module "mod-100rel" registered 18:01:23.450 sip_endpoint.c .Module "mod-pjsua" registered 18:01:23.450 sip_endpoint.c .Module "mod-invite" registered 18:01:50.261 wmme_dev.c ..WMME found 3 devices: 18:01:50.261 wmme_dev.c .. dev_id 0: Wave mapper (in=2, out=2) 18:01:50.261 wmme_dev.c .. dev_id 1: Microfone (Dispositivo de High (in=2, out=0) 18:01:50.261 wmme_dev.c .. dev_id 2: Alto-falantes (Dispositivo de H (in=0, out=2) 18:01:50.261 wmme_dev.c ..WMME initialized 18:01:50.261 pjlib ..select() I/O Queue created (2734FAC4) 18:01:50.267 sip_endpoint.c .Module "mod-evsub" registered 18:01:50.267 sip_endpoint.c .Module "mod-presence" registered 18:01:50.267 sip_endpoint.c .Module "mod-mwi" registered 18:01:50.267 sip_endpoint.c .Module "mod-refer" registered 18:01:50.267 sip_endpoint.c .Module "mod-pjsua-pres" registered 18:01:50.267 sip_endpoint.c .Module "mod-pjsua-im" registered 18:01:50.267 sip_endpoint.c .Module "mod-pjsua-options" registered 18:01:50.267 pjsua_core.c .1 SIP worker threads created 18:01:50.267 pjsua_core.c .pjsua version 2.8 for initialized 18:01:50.267 pjsua_core.c .PJSUA state changed: CREATED --> INIT 18:01:50.280 wmme_dev.c WMME found 3 devices: 18:01:50.280 wmme_dev.c dev_id 0: Wave mapper (in=2, out=2) 18:01:50.280 wmme_dev.c dev_id 1: Microfone (Dispositivo de High (in=2, out=0) 18:01:50.280 wmme_dev.c dev_id 2: Alto-falantes (Dispositivo de H (in=0, out=2) 18:01:50.280 pjsua_core.c Shutting down, flags=0... 18:01:50.280 pjsua_core.c PJSUA state changed: INIT --> CLOSING 18:01:50.281 pjsua_call.c .Hangup all calls.. 18:01:50.281 pjsua_media.c .Call 0: deinitializing media.. 18:01:50.281 pjsua_media.c .Call 1: deinitializing media.. 18:01:50.281 pjsua_media.c .Call 2: deinitializing media.. 18:01:50.281 pjsua_media.c .Call 3: deinitializing media.. 18:01:50.281 pjsua_pres.c .Shutting down presence.. 18:01:51.282 pjsua_core.c .Destroying... 18:01:51.282 pjsua_media.c .Shutting down media.. 18:01:51.769 sip_transactio .Stopping transaction layer module 18:01:51.769 sip_transactio .Stopped transaction layer module 18:01:51.769 sip_endpoint.c .Module "mod-pjsua-options" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-pjsua-im" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-pjsua-pres" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-pjsua" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-stateful-util" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-refer" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-mwi" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-presence" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-evsub" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-invite" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-100rel" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-ua" unregistered 18:01:51.769 sip_transactio .Transaction layer module destroyed 18:01:51.769 sip_endpoint.c .Module "mod-tsx-layer" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-msg-print" unregistered 18:01:51.769 sip_endpoint.c .Module "mod-pjsua-log" unregistered 18:01:51.769 sip_endpoint.c .Endpoint 2733CA04 destroyed 18:01:51.769 pjsua_core.c .PJSUA state changed: CLOSING --> NULL 18:01:51.769 pjsua_core.c .PJSUA destroyed... 18:19:38.250 os_core_win32. !pjlib 2.8 for win 32 initialized 18:19:41.789 pjlib .select() I/O Queue created (27469F70) 18:19:41.789 sip_endpoint.c .Module "mod-msg-print" registered 18:19:41.789 pjsua_core.c .PJSUA state changed: NULL --> CREATED 18:19:41.790 sip_endpoint.c .Module "mod-pjsua-log" registered 18:19:41.790 sip_endpoint.c .Module "mod-tsx-layer" registered 18:19:41.790 sip_endpoint.c .Module "mod-stateful-util" registered 18:19:41.790 sip_endpoint.c .Module "mod-ua" registered 18:19:41.790 sip_endpoint.c .Module "mod-100rel" registered 18:19:41.790 sip_endpoint.c .Module "mod-pjsua" registered 18:19:41.790 sip_endpoint.c .Module "mod-invite" registered 18:19:41.798 wmme_dev.c ..WMME found 3 devices: 18:19:41.798 wmme_dev.c .. dev_id 0: Wave mapper (in=2, out=2) 18:19:41.798 wmme_dev.c .. dev_id 1: Microfone (Dispositivo de High (in=2, out=0) 18:19:41.798 wmme_dev.c .. dev_id 2: Alto-falantes (Dispositivo de H (in=0, out=2) 18:19:41.798 wmme_dev.c ..WMME initialized 18:19:41.799 pjlib ..select() I/O Queue created (2746191C) 18:19:41.801 sip_endpoint.c .Module "mod-evsub" registered 18:19:41.801 sip_endpoint.c .Module "mod-presence" registered 18:19:41.801 sip_endpoint.c .Module "mod-mwi" registered 18:19:41.801 sip_endpoint.c .Module "mod-refer" registered 18:19:41.801 sip_endpoint.c .Module "mod-pjsua-pres" registered 18:19:41.801 sip_endpoint.c .Module "mod-pjsua-im" registered 18:19:41.801 sip_endpoint.c .Module "mod-pjsua-options" registered 18:19:41.802 pjsua_core.c .1 SIP worker threads created 18:19:41.802 pjsua_core.c .pjsua version 2.8 for initialized 18:19:41.802 pjsua_core.c .PJSUA state changed: CREATED --> INIT 18:19:41.803 pjsua_core.c SIP UDP socket reachable at 10.224.100.252:59013 18:19:41.804 udp2747B1E8 SIP UDP transport started, published address is 10.224.100.252:59013 18:19:41.806 tcptp:62884 SIP TCP listener ready for incoming connections at 10.224.100.252:62884 18:19:41.806 pjsua_core.c PJSUA state changed: INIT --> STARTING 18:19:41.806 sip_endpoint.c .Module "mod-unsolicited-mwi" registered 18:19:41.806 pjsua_core.c .PJSUA state changed: STARTING --> RUNNING *** PJSUA2 STARTED *** 18:19:41.806 pjsua_acc.c Adding account: id=sip:9001@177.10.116.7 18:19:41.806 pjsua_acc.c .Account sip:9001@177.10.116.7 added with id 0 18:19:41.806 pjsua_acc.c .Acc 0: setting registration.. 18:19:41.808 pjsua_core.c ...TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- 18:19:41.808 pjsua_acc.c ..Acc 0: Registration sent 18:19:41.846 sip_parser.c !Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:41.846 sip_transport. Error processing 455 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 100 Trying Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces Content-Length: 0 -- end of packet. 18:19:41.847 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:41.847 sip_transport. Error processing 552 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060>;tag=as16f8acfc Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="192714f2" Content-Length: 0 -- end of packet. 18:19:42.308 pjsua_core.c .TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060>;tag=as16f8acfc Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="192714f2" Content-Length: 0 -- end of packet. 18:19:43.308 pjsua_core.c .TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- 18:19:43.347 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:43.347 sip_transport. Error processing 455 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 100 Trying Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces Content-Length: 0 -- end of packet. 18:19:43.347 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:43.347 sip_transport. Error processing 552 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060>;tag=as16f8acfc Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="192714f2" Content-Length: 0 -- end of packet. 18:19:45.309 pjsua_core.c .TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- 18:19:45.345 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:45.345 sip_transport. Error processing 455 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 100 Trying Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow : INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces Content-Length: 0 -- end of packet. 18:19:45.347 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:45.347 sip_transport. Error processing 552 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060>;tag=as16f8acfc Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="192714f2" Content-Length: 0 -- end of packet. 18:19:49.310 pjsua_core.c .TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- 18:19:49.347 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:49.347 sip_transport. Error processing 455 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 100 Trying Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces Content-Length: 0 -- end of packet. 18:19:49.348 sip_parser.c Error parsing '5901313': String value was greater than the maximum allowed value. 18:19:49.348 sip_transport. Error processing 552 bytes packet from UDP 177.10.116.7:5060 : PJSIP invalid value error exception when parsing 'Via' header on line 2 col 40: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 177.35.230.249:5901313 ;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582;received=177.35.230.249;rport=59013 From: <sip:9001@177.10.116.7:5060>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7:5060>;tag=as16f8acfc Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER User-Agent: snep Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="192714f2" Content-Length: 0 -- end of packet. 18:19:53.310 pjsua_core.c .TX 488 bytes Request msg REGISTER/cseq=26087 (tdta2747FCC4) to UDP 177.10.116.7:5060: REGISTER sip:177.10.116.7 SIP/2.0 Via: SIP/2.0/UDP 10.224.100.252:59013 ;rport;branch=z9hG4bKPj140e7d145e2a426da3a56aa89a9a4582 Max-Forwards: 70 From: <sip:9001@177.10.116.7>;tag=1eabb78e743a41a990a03961a9e0eb2a To: <sip:9001@177.10.116.7> Call-ID: 6ebf49517aa54692b19de5a5b0d0ca58 CSeq: 26087 REGISTER Contact: <sip:9001@10.224.100.252:59013;ob> Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0