asterisk

Hello - I have an asterisk server that is running fine behind iptables. Call flow is fine inbound and outbound, however, when I setup a call forward I get no audio either direction. The asterisk log does show the call forward. When I temporarily disable iptables the audio works. When I...

hi, I use asterisk based telephony system. but calls drop after a while and sometimes we can not send a fax. some of our user can not calling eachother properly. can you give me exact solution? asterisk runs on centos 6.x we use esxi too. we use ip pbx, ip telephones too can someone tell me...