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UC-520 No incoming calls on SIP trunk

Hi,

I have configured SIP trunk on UC-520 using CCA 2.2 and able to make outgoing calls without issue.

but when I am trying to make incoming calls to the SIP trunk it just drops not ringing.

checked the "show sip register status"    account is getting registered

configured incoming dial-plan to ring an extension directly

still no incoming calls

any suggestions ?

Thanks

Sunil.

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Enthusiast

Re: UC-520 No incoming calls on SIP trunk

It's possible the digits are not the same as what the SIP carrier is sending.  Perform the following debugs to show you what dial-peers are being match and what SIP errors are occurring.

debug ccsip messages

debug voip ccapi inout