[cisco-voip] Verizon SIP vs. PRI?

[Matthew Loraditch]

The thing I would say is it all depends on your level of comfort with the Carrier and with SIP. I generally don't have a problem with the quality of the service when it works, the problem has been troubleshooting and making it work in the first place. I understand how to debug and troubleshoot a T-1 or PRI and can set one up H.323 or MGCP no problem. SIP just doesn't process for me, Everybody says it's simple, plain text and all that but I don't get it.

My point, If you are going with it make sure you or someone you have understands it.

If you have a smaller install one thing you can do is have the provider put in an IAD and hand off as PRI. Make them responsible and make your side something you understand. Obviously in a large campus environment that may not be feasible and defeats some of the consolidation benefits but in a smaller setup it can make life much easier.

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830
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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of David Eco
Sent: Tuesday, February 08, 2011 2:47 PM
To: matthew at ciscovoiceguru.com; notariannil1 at scranton.edu
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Verizon SIP vs. PRI?

with SIP, you may get more capacity of the channel. But in our case, we have to setup IPSEC VPN with Verizon to utilize their SIP Trunk. Network has to be reliable.

David




> From: matthew at ciscovoiceguru.com<mailto:matthew at ciscovoiceguru.com>
> Date: Tue, 8 Feb 2011 13:43:34 -0600
> To: notariannil1 at scranton.edu<mailto:notariannil1 at scranton.edu>
> CC: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
> Subject: Re: [cisco-voip] Verizon SIP vs. PRI?
>
> One of my biggest questions right now regarding SIP trunks has been data circuit issues and usability in SRST mode. If your branch office loses it's network connection, will your SIP trunk go down too? If so, then you're up the creek without a paddle.
>
> Sent from my iPhone
>
> On Feb 8, 2011, at 1:13 PM, Lisa Notarianni <notariannil1 at scranton.edu<mailto:notariannil1 at scranton.edu>> wrote:
>
> > We currently utilize PRI trunks as fail over and backup. They connect to our 6509's.
> >
> > Can anyone share their thoughts on SIP vs. PRI services.
> >
> > Thanks,
> >
> > Lisa
> > --
> > <LNsignature.jpg>
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