For some reason, when we forward extensions to an outside line (via #6011 9 xxx xxx xxxx#), calls to the DID end up with dial tone. This was working fine some time ago--not sure when it "broke".
Internal calls forward out correctly; auto-attendant calls work correctly too.
The only forwarding glitch is DID calls to an extension, forwarding back out. The caller gets dial tone. (I hope that's not DISA...) We have voice T1 circuit, fairly standard setup.
I have some IVP8 boxes which are just routing back out, and those work fine; so I'm suspecting a problem with a trunk, DID, or SCF setting somewhere on the CTX, and probably not a telco provider problem.
Any thoughts on where to start troubleshooting?
