CONFIGURATION
TCP Port 8089, 80, 443 should be opened on all dialer hosts.
UDP should not be blocked and on the router, SIP ALG or Smart Package detection should be disabled.
We also don't support direct SIP connections unless you use a hard-phone
For each dialer host you have to enable or forward packets properly. e.g.:ccs-xxx.teleserosuite.com 80, 443, 8089 TCPda1.ccs-xxx.teleserosuite.com 80, 443, 8089 TCP+ RTP/SDP should properly be allowed for agents not to have audio issues, the UDP port range for RTP/SDP on dialers are 10000-32767
If you want to use hard phones, ports change to the following:
ccs-xxx.teleserosuite.com 80, 443 TCP --- 5060 UDP
da1.ccs-xxx.teleserosuite.com 80, 443 TCP --- 5060 UDP
the UDP port range for RTP/SDP on dialers are 10000-32767