[VoiceOps] Request for Opinions: High density ATA's

Matthew Crocker matthew at corp.crocker.com
Thu Mar 21 12:10:25 EDT 2019

Years ago I did something similar (college instead of hospital) with 200+ analog lines using a Zhone MALC.   
Originally I MGCPed them back to a Vocaldata/Tekelec T6000/Genband M6 and then converted them to SIP on a Broadworks switch.

The Zhone MALC was a bit of a pain to configure but became cookie-cutter once we got it working.   
We installed it in a Zhone supplied outdoor cabinet in their very wet basement and included DC & batteries in a self contained system.

For cut over we did the following:

Existing Centrex lines from Verizon were terminated on a 'Centrex 66 block'
Existing College lines to the campus phones were terminated on a 'College 66 block'
Existing cross connects from Centrex block to College Block

We established new 'Crocker 66 blocks' with 25 pair Amphenols to the Zhone (disconnected)
We moved the cross connect from the centrex block and connected to the Crocker block. One at a time, mapping numbers to Zhone config
We created a temporary cross connect from Crocker block to Centrex Block

On the day of the cut over we pulled all of the temporary cross connects to disconnect Verizon from the campus and plugged the Amphenols into the Zhone.
200+ phones cut over in under 10 minutes.

I think the MALC is EoL'd but the Zhone MXK is basically the same thing.

You can also do this with Adtran TA5000s. or you can stack a bunch of Adtran TA924s

On 3/21/19, 11:55 AM, "VoiceOps on behalf of Ryan Delgrosso" <voiceops-bounces at voiceops.org on behalf of ryandelgrosso at gmail.com> wrote:

    I have found myself with a number of hospital opportunities and 
    servicing the staff with IP phones is a no-brainer, however there is the 
    need for multi-hundred room connectivity for patient room phones and the 
    staff mandate is to keep it analog because "ip phones there will grow 
    I am looking for 24+ port density with amphenol connectors, and ideally 
    some kind of rudimentary internal routing so i dont need to register all 
    24 discreet ports and can route by some header (to or uri) within a 
    single registration.
    Right now im looking at AudioCodes and the Sangoma Vega series. Obihai 
    would be my natural choice here but don't have anything that fits my 
    density requirements.
    Any opinions on these or others I should consider. Anyone deploy these 
    and can speak to the experience?
    Thanks in advance
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    VoiceOps at voiceops.org

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