I have a MGCP gateway and CCM5.1.2. A CSS,named CSS-A,contains a partition which has all the 4-digit extensions(include phones and a CTI route point).on the mgcp gw config,I set the signification digit to 4, use CSS-A.In this case, everything is fine.
But when I use a translation-pattern from 8 digits to 4 digits to search CSS-A,phones can be connected while the CTI route point can not.We can see the message from the debug states: User busy.
It looks weird. How come?