Question

A CUCM administrator has configured two route patterns in the same partition: 9.[2-9]XXXXXX (a 7-digit local pattern) and 9.[2-9]XXXXXXXXX (a 10-digit pattern). A user dials 9 followed by 5551234, but the phone waits about 15 seconds before the call is finally routed. Users complain about the delay on 7-digit local calls. What is the cause of this behavior, and what best resolves it?

Accepted Answer

The 7-digit pattern is a potential match but not the closest match while more digits could still arrive, so digit analysis waits for the T302 interdigit timer to expire; lowering T302 or restructuring the dial plan resolves it

Answer

The two patterns are in the same partition, causing a hunt collision; moving the 10-digit pattern to a different partition eliminates the wait

Answer

The phone's SIP dial rules are missing, so the phone buffers digits until the registration timer expires; applying a SIP dial rule removes the delay

Answer

The 7-digit pattern requires a called-party transformation mask that is missing, so CUCM delays routing until the mask times out; adding the mask fixes it