Todays options for PSTN access for distributed offices

[9mmgeek]

We have offices around the country with G700 MGs connected to a central media server running CM 3.1.2 on an IP Connect design. Each MG (or stack) has its own local trunks, usually a PRI and most of those dont hit more than 4-5 active channels. These are professional offices that want local telephone numbers for clients to call.

So I am looking for cost savings and I am thinking about the voip telco services advertising these days and the implications for businesses. I was wondering if anyone is using or knows about any new telco service that can provide local numbers around the country but terminate them at a single location with CNI so I can route the calls through our private network to the appropriate office.

If I can save enough $ by dropping PRIs maybe I can justify a forklift of the G700s so I can upgrade to CM5..

 

[dufus2506]

About the only thing I'd worry about in this arrangement is how to do local 911 and 411.

If you drop the local PRIs, that's a lot harder to do.

Incoming is easy. But if you have an emergency in an office, the last thing you want to have is a person in San Diego talking to a 911 operator in New York.

Carpe dialem! (Seize the line!)

 

[wildcard100001]

SIP carrier trunking (ATT IPFLEX)will do this... but you need to invest in SIP infrastructure.. Session border controllers, Session Managers, SES... probably an upgrade to 5.2.. then to configure it redundantly will add cost... I haven't seen the cost justification....yet. but it is cool and I can see value in it with very large deployments.

What happens when your redundant WAN links go down? = no PSTN service.

In any case something for you to check out...

Wildcard

 

[98Converter]

Verizon is offering a similar SIP package...

http://www22.verizon.com/wholesale/solutions/solution/sip+gateway+service.html

I hear the integrations are a bear though~

Good luck.

Thanks,
98C

We are what we repeatedly do. Excellence, then, is not an act but a habit. ARISTOTLE 384-322 B.C.

 

[phoneguy55]

I would say you would need a single POTS line at each location to route 911.

 

[wildcard100001]

The single POTS line would only be needed if the WAN links went down. This type of service has e911 included.

Wildcard

 

[phoneguy55]

exactly.

 

[9mmgeek]

Thanks all, I will check these out. I figured I would need the POTS line for 911 and backup but it would be much cheaper than a PRI.