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


 
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asterisk.org at sedwar...
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PostPosted: Sat Feb 16, 2008 1:14 pm    Post subject: [asterisk-users] T1 "access layer" used Cisco or n Reply with quote
On Sat, 16 Feb 2008, Tom Browning wrote:

Quote:
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
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lists at minotaur.cc
Guest
PostPosted: Sat Feb 16, 2008 2:28 pm    Post subject: [asterisk-users] T1 "access layer" used Cisco or n Reply with quote
If there's relatively little cost difference between the two (factoring in necessary PC redundancy requirements, etc.) then it really comes down to "which do you feel more comfortable configuring"?

Regards,

Chris
--
C.M. Bagnall, Director, Minotaur I.T. Limited
For full contact details visit http://www.minotaur.it
This email is made from 100% recycled electrons
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stotaro at totarotechn...
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PostPosted: Sat Feb 16, 2008 2:31 pm    Post subject: [asterisk-users] T1 "access layer" used Cisco or n Reply with quote
On Feb 16, 2008 1:14 PM, Steve Edwards <asterisk.org at sedwards.com> wrote:
Quote:
On Sat, 16 Feb 2008, Tom Browning wrote:

Quote:
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. By using NFAS on every four T1s, I cut the
bill from $2,800 for 28 D chans to $700 for seven D chans per month
(GXing).

This was a very solid setup and economical as well. It also allowed
for some degree of failover since all 28 T1s were in a hunt group so
if one box failed (which did not happen except for planned testing)
the calls on that box would be dropped but any new calls coming in
would go to another box.

Thanks,
Steve Totaro
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asterisk.org at sedwar...
Guest
PostPosted: Sat Feb 16, 2008 6:44 pm    Post subject: [asterisk-users] T1 "access layer" used Cisco or n Reply with quote
On Sat, 16 Feb 2008, Steve Totaro wrote:

Quote:
On Feb 16, 2008 1:14 PM, Steve Edwards <asterisk.org at sedwards.com> wrote:
Quote:
On Sat, 16 Feb 2008, Tom Browning wrote:

Quote:
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 Smile

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
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