Hello on sending register request to server untrusted server certificate error is coming : does that mean the certificate sent by server is not signed by CA the public key of which is available at client end ?? REGISTER sip:192.168.103.175;transport=tls SIP/2.0 Via: SIP/2.0/TLS 192.168.1.186:46056;rport;branch=z9hG4bKPjr3xYrjUCy5QK7NNKdhBWcwLs2tBGsnqO;alias Max-Forwards: 70 From: <sip:911126592065@192.168.103.175>;tag=1foj94Tvyv.12FP0FDGNE1J59Ut5Q7Ro To: <sip:911126592065 at 192.168.103.175> Call-ID: KYPZdCqm3awLif0EpgbLlUIoMi6wfuUD CSeq: 28092 REGISTER User-Agent: PJSUA v2.4.5 Linux-3.13.0.45/x86_64/glibc-2.19 Supported: outbound, path Contact: <sip:911126592065 at 192.168.1.186:46056;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000aa013800>" Expires: 300 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Length: 0 --end msg-- 10:26:19.540 pjsua_acc.c ..Acc 3: Registration sent 10:26:19.540 pjsua_acc.c Acc 3: setting online status to 1.. 10:26:19.540 pjsua_core.c PJSUA state changed: INIT --> STARTING 10:26:19.540 sip_endpoint.c .Module "mod-unsolicited-mwi" registered 10:26:19.540 pjsua_core.c .PJSUA state changed: STARTING --> RUNNING >>> 10:26:19.657 pjsua_app.c !SIP TLS transport is connected to [192.168.103.175:5061] 10:26:19.657 pjsua_app.c TLS cipher used: 0x000039/DHE-RSA-AES256-SHA 10:26:19.657 pjsua_app.c TLS cert info of [192.168.103.175:5061]: Version : v3 Serial : 02 Subject : ServCert1 /C=IN/ST=DEL/L=ND/O=CDOT/OU=FT/CN=ServCert1/emailAddress=192.168.103.173 Issuer : CA /C=IN/ST=DEL/L=ND/O=CDOT/OU=FT/CN=CA/emailAddress=ca at cdot.in Valid from : Thu 2015-11-26 05:41:00.000 GMT Valid to : Sat 2016-11-26 05:36:00.000 GMT 10:26:19.657 pjsua_app.c TLS cert verification result of [192.168.103.175:5061] : 10:26:19.657 pjsua_app.c - The certificate is untrusted 10:26:19.657 pjsua_app.c - The server identity does not match to any identities specified in the certificate 10:26:19.657 pjsua_app.c PJSUA is configured to ignore TLS cert verification errors 10:26:19.657 tlsc0x9e6258 TLS transport 192.168.1.186:46056 is connected to 192.168.103.175:5061 10:26:19.662 pjsua_core.c .RX