IP Telephony and Phones

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Hello Experts,I am going to integrate Cisco CallManager 4.2 with two other PBXs (Avaya and Nortel). Could someone please point me to the right documentations. Unfortunately, I don't know exactly which model or version are the PBXs and will know next ...

I have a phone that is hanging off of a FXS card in a 1751 router. The phone is configured in the call manager as a h.323 client. This phone was working before I upgraded the call manager to version 4.1.3 from version 3.3.2. Now when I call the ph...

cerp by Level 1
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Hi,I am trying to configure a IP Telephony Network with E1 PRI as MGCP Gateway to PSTN. We have DID enabled numbers, however few users who have the DID Numbers doesnt want their numbers to be directly displayed instead they would want the PRI Number ...

I would like to transform the calling party number so that called party can't see my number. So I used calling party transformation mask in the route pattern configuration.By doing that, I can't see anymore calling number on my provider bill.Is there...

BABARCHE by Level 1
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how we can take the date from the cdr report The old ccm was formated and installed the new ccm and the CISCO BARS version is different so i cannot retrive back the back up . i copied the back up file in to one of the pc where i installed the sql an...

HiIP ARP inspection has being disabling ports when ip phones arp the default gateway. Phones have been stable for months. This problem may have something to do with DHCP leasing. I have attached the log from a 4500 switch. Is anyone aware what the 00...