I am using TLS transport on pjsip with pjsip version 2.1. on ios device. My server is Asterisk 11.5. On 3g/4g/LTE while dialing a number I receive a reset tcp packet and my connection breaks. If i try to call 4-5 times then call goes through only once. Everything works fine when trying to use Wi-fi Here are the pjsip logs. 18:18:37.654 tsx0xaf6464 ....State changed from Null to Calling, event=TX_MSG 18:18:37.654 dlg0xaea864 .....Transaction tsx0xaf6464 state changed to Calling 18:18:37.654 pjsua_app.c .......Call 1 state changed to CALLING 18:18:37.661 coreaudio_dev. !Recorder thread started, (371 frames) 18:18:37.661 os_core_unix.c Info: possibly re-registering existing thread 18:18:37.661 coreaudio_dev. !Player thread started, (372 frames) 18:18:39.293 tlsc0xae9014 !TLS connection closed 18:18:55.373 pjsua_app.c SIP TLS transport is disconnected from [XX.XX.XX.XX:5061]: Connection reset by peer [status=120054] 18:18:55.373 pjsua_app.c TLS cipher used: 0x000035/AES256-SHA 18:18:55.373 pjsua_app.c TLS cert info of [XX.XX.XX.XX:5061]: 18:18:55.373 pjsua_app.c TLS cert verification result of [XX.XX.XX.XX:5061]: The certificate is untrusted 18:18:55.373 pjsua_app.c PJSUA is configured to ignore TLS cert verification errors 18:18:55.373 tsx0xaf6464 State changed from Calling to Terminated, event=TRANSPORT_ERROR 18:18:55.373 dlg0xaea864 .Transaction tsx0xaf6464 state changed to Terminated 18:18:55.374 pjsua_call.c ...Call 1 hanging up: code=200.. 18:18:55.374 pjsua_call.c ....Failed to create end session message: INVITE session already terminated (PJSIP_ESESSIONTERMINATED) [status=171140] 18:18:55.405 pjsua_app.c ...Call 1 is DISCONNECTED [reason=503 (Connection reset by peer)] -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130823/f01a16bc/attachment-0001.html>