I have a very strange case regarding E1. We use E1 as PSTN trunk. The line number is xxxxxx00 - xxxxxx99 which maps exactly to users extension xxx00 - xxx99.
We use xxx00 as the CTI Route Point which forwards the call to IVR. Currently, calls to xxxxxx00 has behaves unusual. Some inbound call from certain operators are answered by IVR, but the following digits inputted by the caller are not accepted / read. But the other callers from different operators doesn't feel so.
We are heading to a deadlock, since neither of the side (provider and us) can point out where is the problem ? Is there any relation to E1 setting in CCM. We use MGCP and CCM 4.1(3)SR5b. Thank you.
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