Having problems configuring Cisco Call Manager 5.1 with a Cisco 2811 MGCP controlled gateway connected to 4 ISDN 2e circuits. Configured the gateway via the GUI and the gateway has successfully synced the config and is talking to Call Manager wihout any problems, the ISDN 2e endpoints are also reporting as registered. Created the nesessary route patteren and line groups etc but when making a call I receive a busy tone.
ISDN is reporting as 'MULTIPLE_FRAME_ESTABLISHED' on the gateway, and q921 messages show TX and RX messages.
Can anyone help with this?