Hi All,
I have an Asterisk server on a public IP address at my office, outside the firewall.
My SIP handsets are inside the firewall using private addresses.
They can register, and can make sucessful outgoing calls.
However, the handsets cannot call each other, if I dial from one to the other, I get unavailable (voicemail). Also, the server cannot ring the handsets when an incoming PSTN call comes in, it tries to ring them but then goes straight to voicemail.
Do I need to do something on the firewall?
Incase you are wondering the setup is as follows.
2 public IP’s - one for the Ast server and one for Ext interface of firewall.
internal interface of firewall and all PC’s and sip phones have private addresses.
Thanks,
Seabro