I have had a few problems with new circuits installed, If it is a " flex " type circuit (voice and data on the same circuit) the carrier needs to identify the Fax/Modem DID's so they can release the compression on these calls.

You should also notice clocking problems, the fix we had to do on both 3300 and 200 is have the carrier set there clocking in the router to clock both off of the carrier and PBX, as well as identify the lines with the carrier as a modem/fax

Alex


Alex Kroger
Pinnacle Communications Corp
Mitel/Hitachi
Nationwide Hospitality Provider