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New Member

Problem of Unknown Number display on IP Telephone

Hi,

There is an issue of Unknown Number display on IP Telephone while calling from PBX extension (Ericsson PBX) to the IP telephone.Where as IP telephone extension number is displayed on PBX phone when calling from IP telephone.Verified necessary configurations on voice gateway and Call Manager any ideas in solving this issue will be highly appreciated.

Thanks in Advance

Regards

Ahmed

  • IP Telephony
1 REPLY
New Member

Re: Problem of Unknown Number display on IP Telephone

Hi

What's trunk between PBX and CCM? R2 CAS, ISDN, SIP?

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