Hello Team,

I am using Linphone with Kamailio and facing *SSL handshake failed : X509 - Certificate verification failed, e.g. CRL, CA or signature check failed* error over *TLS*.

Following error is coming

Apr  7 15:54:36 irisivdxcloud /usr/sbin/kamailio[9089]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 172.105.49.156

Apr  7 15:54:36 irisivdxcloud /usr/sbin/kamailio[9089]: ERROR: <core> [core/tcp_read.c:1500]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f2c7f85a2e0 r: 0x7f2c7f85a408 (-1)

Apr  7 15:54:36 irisivdxcloud /usr/sbin/kamailio[9036]: WARNING: {1 20 REGISTER ~OkQyvT70a} sanity [sanity.c:612]: check_cl(): content length header missing in request

Apr  7 15:54:40 irisivdxcloud /usr/sbin/kamailio[9040]: WARNING: {1 20 REGISTER ~OkQyvT70a} sanity [sanity.c:612]: check_cl(): content length header missing in request

Apr  7 15:54:43 irisivdxcloud /usr/sbin/kamailio[9071]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error

Apr  7 15:54:43 irisivdxcloud /usr/sbin/kamailio[9071]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS accept:error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca

Apr  7 15:54:43 irisivdxcloud /usr/sbin/kamailio[9071]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 49.36.149.254

Apr  7 15:54:43 irisivdxcloud /usr/sbin/kamailio[9071]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 172.105.49.156

Apr  7 15:54:43 irisivdxcloud /usr/sbin/kamailio[9071]: ERROR: <core> [core/tcp_read.c:1500]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f2c7f85a2e0 r: 0x7f2c7f85a408 (-1)

Apr  7 15:54:44 irisivdxcloud /usr/sbin/kamailio[9042]: WARNING: {1 20 REGISTER ~OkQyvT70a} sanity [sanity.c:612]: check_cl(): content length header missing in request

Apr  7 15:54:44 irisivdxcloud /usr/sbin/kamailio[9072]: INFO: {1 674 REGISTER 583608109@192.168.1.105} <script>: REGISTRATION CALLED: 740,Count: 0,Contact: sip:740@117.242.44.49:3668;transport=TCP,Domain: location

Please suggest, what is this issue all about.

Thanks & Regards,

Amit Sharma

(Sr. Team Leader)

(An ISO 9001:2008 company)

Mobile: tel:9891612004

PH:  +91 120 2595870

Ext.: tel:870

Email : amitsharma@coraltele.com

Web : www.coraltele.com