[VoiceOps] Geographic redundancy

Alex Balashov abalashov at evaristesys.com
Wed Aug 12 10:15:08 EDT 2009

Alex Balashov wrote:

>> If I remember correctly tho, in order to connect to the tandems you 
>> had to be able to provide ss7 services.  We got all of our ports out 
>> of a DMS500, but I do remember people using something
>> from cisco to emulate a switch (SCC maybe?) and back end all the dial 
>> traffic into 5800's....
> There were lots of switch-lite solutions (signaling gateways) that were 
> popular during the dialup boom.  The Cisco PGW was very popular among 
> them.  All of these could control media gateways via H.248/MEGACO or 
> MGCP, and the TNTs did H.248.  Just very basic SS7 ISUP->media gateway 
> control was needed to get modem pools going.

And the Cisco AS-series stuff is MGCP, I believe.

Alex Balashov
Evariste Systems
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