I have a 2811 router configured as a MGCP gateway to a CUCm 6.0 server. The FXO ports are configured and registered according to CUCM. Inbound call ring the correct port via a "show voice port summary" but it only rings once and then you get dial tone.
The port is configured to ring extension 8208 which is a CTI route point that forward all to voicemail on a Unity server. There is a call handler on Unity with that number.
Calls to other sites in this environment can transfer to the 8208 auto attendant without a problem, so I'm assuming that the CTI route point and call handler are configured correctly.
Any help would be appreciated.