[cisco-voip] SIP as a gateway Protocol

[Tim Smith]

We dont have too many SIP providers here in Oz at the moment anyway.
We were talking about just using SIP between CCM and the Gateway. Vs MGCP
and H323.

Fax / modem could definitely be a good point though.

Cheers,

Tim.

On Wed, Nov 4, 2009 at 1:18 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

>  From our initial conversations with our PSTN providers, SIP was a few
> years away with feature parity with H323/MGCP/PRI trunks.
>
> FAX support was definately out of the question, and there were crazy
> requirements about not being able to do voice only on the ethernet trunk. We
> had to buy a data package that was no more than 50% voice traffic. For us,
> we get our internet through our regional network at dirt cheap prices
> because we basically run a co-op. For others it might make sense to move to
> the same PSTN/SIP/Internet carrier, but for us it didn't. Even our backup
> internet link is cheaper than the PSTN provider could price I believe.
>
> The other thing was route diversity and multiple demarcs. I think those
> were quite expensive where as now, we get it at no extra cost.
>
> I've long been a proponent of if it ain't broke, don't fix it. Even when we
> went to tender and ended up switching our PRIs to another local carrier, it
> was a LOT of work. I understood it saved us quite a bit of money, so it was
> worth it in the end for a three year contract. That being said, don't expect
> that SIP will be cheaper than PRIs and/or without it's own problems.
>
> Caveat Emptor as my friend Caesar said.
>
>
> ----- Original Message -----
>  *From:* Tim Smith <thsglobal at gmail.com>
> *To:* STEVEN CASPER <SCASPER at mtb.com>
> *Cc:* CiscosupportUpuck <cisco-voip at puck.nether.net>
> *Sent:* Tuesday, November 03, 2009 8:46 PM
> *Subject:* Re: [cisco-voip] SIP as a gateway Protocol
>
> Also, SIP is slightly easier to troubleshoot than H323, much more so than
> MGCP. (And I also dont like MGCP anyway :)
>
> Cheers,
>
> Tim.
>
> On Wed, Nov 4, 2009 at 12:45 PM, Tim Smith <thsglobal at gmail.com> wrote:
>
>> I like the idea.
>>
>> More and more SIP trunks will be turning up. Why bother having to go from
>> H323 to SIP. Simpler just to run SIP.
>>
>> I also like SIP and how you can set it up to monitor the destination of
>> your dial-peers. Shut them down if a CCM is down.
>>
>> Cheers,
>>
>> Tim
>>
>>   On Wed, Nov 4, 2009 at 12:25 PM, STEVEN CASPER <SCASPER at mtb.com> wrote:
>>
>>>   I assume you are talking traditional analog and digital PSTN
>>> gateways, why are you considering migrating to SIP to control these as
>>> opposed to H323? .
>>>
>>> Steve
>>>
>>> >>> Voice Noob <voicenoob at gmail.com> 11/3/2009 6:09 PM >>>
>>>
>>> Has anyone started using SIP on the PSTN gateway? I want to use it
>>> instead of H.323 or MGCP and start migrating it to SIP on the gateway. Any
>>> experience with this? Can I get Calling Name and Number from the PSTN side?
>>>
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>>
>>
>> --
>>
>> Cheers,
>>
>> Tim
>>
>>
>> Sent from Sydney, Nsw, Australia
>
>
>
>
> --
>
> Cheers,
>
> Tim
>
>
> Sent from Sydney, Nsw, Australia
>
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-- 

Cheers,

Tim


Sent from Sydney, Nsw, Australia
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