[asterisk-users] T1 "access layer" used Cisco or new Digium

[Steve Edwards]

On Sat, 16 Feb 2008, Steve Totaro wrote:

> On Feb 16, 2008 1:14 PM, Steve Edwards <asterisk.org at sedwards.com> wrote:
>> On Sat, 16 Feb 2008, Tom Browning wrote:
>>
>>> b) buy Digium T1 cards in 2 port or 4 port flavors and place in 1U or 2U
>>> rackmount servers and use as dedicated ISDN T1 to SIP gateways.
>>
>> I did this for a client a couple of years ago. te410p's in 1u's
>> (Supermicro at the time HP DL380's now). I ran IAX instead of SIP. The
>> "telco servers" answered the calls and dialed to an "application server"
>> that did all the voice processing.
>>
>> Client is still happy.
>>
>> Thanks in advance,
>> ------------------------------------------------------------------------
>> Steve Edwards      sedwards at sedwards.com      Voice: +1-760-468-3867 PST
>> Newline                                             Fax: +1-760-731-3000
>>
>
> I did the same thing with a T3 terminated into an Adtran MX2800 M13
> that broke off into 28 T1s that terminated into HP DL320s with quad
> port Sangoma boards (no echo can) and handed the calls off as SIP to
> the application server.

Do all 672 calls go to a single server? I've never had more than 200 calls 
to a single server and it seemed pretty busy :)

Why did you choose SIP over IAX? I chose IAX because it was easier to 
configure. Also I thought IAX would be less "chatty" and "trunking" would 
reduce network traffic -- even though the servers are all in the same 
rack.

Thanks in advance,
------------------------------------------------------------------------
Steve Edwards      sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                             Fax: +1-760-731-3000