I am having trouble with my ISIP phone installed on my iphone/ipod-touch making PSTN calls out through a Skype for SIP trunk on CME.
The interesting thing is that I also have another CME that uses a regular FXO PSTN connection and the ISIP phone has no trouble making PSTN calls
in this environment.
Internal calls work fine...I can even use my ISIP phone to call an internal extension that is call forwarding to a PSTN number and it WORKS!!...just can't do it directly from the ISIP phone
Would you know what the problem or solution might be to this? It appears to be due to the SIP trunk.
Thanks for your help