I want to be able to have my IP phones and IP communicator machines to be able to register and use CME without having to VPN in. Seems like the port usage is rather complicated but this is what I have come up with so far.
access-list 101 permit udp any host 18.104.22.168 eq tftp
access-list 101 permit tcp any host 22.214.171.124 eq www
access-list 101 permit tcp any host 126.96.36.199 eq 2000
access-list 101 permit udp any host 188.8.131.52 range 24576 32768
Int the example below, 184.108.40.206 is the public IP of my CME box and 220.127.116.11 is the tftp server where I have copied and edited the config files with the public IP of the CME.
As of now the phones can register and dial-out but I am getting no audio.
Also, I see the phones requesting .tlv files from the tftp but I only have cnf files. What are the .tlv files for?
What am I missing for the audio?