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MGCP Gateway using QSIG to ISDX

Having issues with connection to a ISDX.

CUCM5.1---2801 E1 qsig---ISDX

Calls from IP system to ISDX cased phones are OK, when you dial from ISDX side to IPT side get a number unobtainable tone after first 2 digits are dialled.

Anyone got any ideas.

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Re: MGCP Gateway using QSIG to ISDX

Chances are the pbx is using overlap, debug isdn q931 would show if that's the case.

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