IP Telephony and Phones

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Hello!   Tell me, please, what is the fundamental difference between Cisco ATA 186 and Cisco ATA 187? What is better to buy?   I have the opportunity to buy a new one Cisco ATA 186 at a price 19 USD and a new one Cisco ATA 187 at a price 45 USD.   I ...

Hello, I am trying to put together a proposal / design for one of my customers but I would like to know about any of your CUBE redundancy experiencies?. In my case my customer will have a SIP trunk over MPLS but would like to have 2 CUBE's for redun...

I've got a CME 8.6 system with several users and SIP phones loaded.  My dial by name directory doesn't recognize any of the users. Can someone point me in the right direction to make this work? I've been googling but I expect someone smart has what I...

johnk by Level 1
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Hi, currently we have CUBE running on 3925 routers, separate from out network routers. We are planning to upgrade our network routers and was thinking to integrate them with CUBE in one platform like ISR 44xx. I see they are powerful routers.  Is the...

Hi, Am using Cisco CISCO2901/K9 and 4fxo card for incoming connection and 15 nos of CP7821 IP phone. CME Ver 12, and ios Version 15.0(1r)M15. i try to configured as per my a little knowledge, but phones registration is fails. Please give me step by s...

I have had our 7965 and 7945 phones installed around 2009 and over the last 2-3 years we continue to have the handsets speaker portion die.  It had always been during the summer when school was not in session and I blamed the custodians for dropping ...