Question

A UCM administrator configures two route patterns for an international customer: '9.011!' for international dialing and '9.[2-9]XXXXXXXXX' for domestic 10-digit calls. Users report that when they dial international numbers, the call is delayed by about 15 seconds before it actually connects. Domestic calls route immediately. What is the MOST likely cause of the delay, and what should the administrator do to fix it?

Accepted Answer

The '9.011!' pattern is variable length, so digit analysis waits for the T302 interdigit timer to expire; enable 'Urgent Priority' on a '9.011!#' pattern or add a pattern using # as the interdigit termination.

Answer

The route pattern is assigned to the wrong partition; move '9.011!' into the same partition as the domestic pattern to remove the delay.

Answer

The Calling Search Space lacks the international partition; add it to the top of the CSS so the pattern is evaluated first.

Answer

The SIP trunk MTP is being invoked; disable Media Termination Point Required on the trunk to speed up call setup.