I am having an issue with overlap receiving on a MGCP/CallManager controlled PRI in Milano Italy. The gateway is a 3825 running 12.4(15)T7. The teleco is sending 8 digits total and I am getting 7 followed by the final digit sometime later. The D channel is configured as follows. Increasing the T302 timer seems to have not effect.
no ip address
isdn switch-type primary-net5
isdn overlap-receiving T302 12000
isdn incoming-voice voice
isdn bind-l3 ccm-manager
isdn bchan-number-order ascending
no cdp enable
The CallManager version is 6.0(1). The gateway is setup to get 5 significant digits. These patterns are in the gateways CSS.
When an incomplete call setup comes in the CallManager attempts to match the last 5 of 7 instead of 8 and the call gets rejected with this error.
Cause i = 0x8081 - Unallocated/unassigned number