No SRTP module loaded, can't setup SRTP session

Hi

We have Installed Asterisk 1.8 with FreePbx , configured tls successfully with certificates , however when we try to initiate a call with SRTP , below is the Message we get :

[2012-09-07 02:11:15] VERBOSE[9908] netsock2.c: == Using SIP RTP TOS bits 184
[2012-09-07 02:11:15] VERBOSE[9908] netsock2.c: == Using SIP RTP CoS mark 5
[2012-09-07 02:11:15] ERROR[9908] chan_sip.c: No SRTP module loaded, can’t setup SRTP session.
[2012-09-07 02:11:15] WARNING[9908] chan_sip.c: Matched device setup to use SRTP, but request was not!
[2012-09-07 02:11:30] VERBOSE[9907] netsock2.c: == Using SIP RTP TOS bits 184
[2012-09-07 02:11:30] VERBOSE[9907] netsock2.c: == Using SIP RTP CoS mark 5
[2012-09-07 02:11:30] ERROR[9907] chan_sip.c: No SRTP module loaded, can’t setup SRTP session.
[2012-09-07 02:11:30] WARNING[9907] chan_sip.c: Matched device setup to use SRTP, but request was not!

does it mean i have to load the SRTP module ?? please help

yes , you should install your asterisk with SRTP support .

When you want to compile asterisk you should run make menuselect and check if res_srtp is installed or not