VoIP at remote site

[pbxn]

I work at a bank with 20 locations, and we are looking to add yet another. Just a real small remote spot, 5 phones or less.
I have an option 61, sig server and IP phones working off of it. Since this is such a small site, I would like to just deploy PoE phones across the network with no remote switch (BCM)
The question is, since all my eggs will be tied to the network circuit, what backup solution do I have?
Bell is my LEC, and they have the crisis link but that would just be limping along. If I had a backup ISDN circuit for the network, could I also hang my phones off of that in the event of a circuit outage?

 

[biv343]

You could use ISDN dial backup, but with your "regular" data going over that link, you'll be lucky to get one or two calls of any quality over that backup link.

That being said, if the users can tolerate some possible phone inconvenience once or twice a year, it should work fine.

An SRG 50 might be an option - you'd still have local trunks to make/receive calls in the event of circuit outage, and you'd have proper 911 access as well.

 

[pbxn]

Well even with a switch there and using Bell's crisis link, I would have traffic issues. I will take a look at the SRG, thanks for the suggestion.

I just don't see a reason to spend a few grand for a 4 or 5 set site. Thanks again

 

[handsbogan]

you could try looking into a 9150 Remote Office this has ISDN backup! and uses digital phones x 15 with one Analouge device

worth looking at!

 

[johnpoole]

not if the backup isdn term's in the same box.. if you have a dual path (spanning tree in place), then the second termanation point could be configed to pass the voip traffic if your network (server side or layer one) is dead.. remember, it never fails, if you have a single possible point of failure, that's the link that dies.. i would look at cost as compared to a single pots line, possibly a fax number in case of er.. bad thing is at a bank, your almost closed without a network, and usually your doors are locked without phones/alarms working..

john poole
bellsouth business
columbia,sc

 

[pbxn]

I have the alarms set for most branches with 1-1FB and 1 analog line off the switch. So they would not be an issue per say.
Each branch now has a net pri and a voice pri, smaller branches are a combo (first 6 chan voice, remainder net) then an isdn backup for DR puproses.
Will be looking at all suggestions thanks again

 

[pbxn]

I got some numbers back from my vendor re: SRG. That will cost most than a BCM 50, so that's not an option.
Haven't got a number for the 9150 yet, but hanging phones off my sig. server still seems to be the cheapest option. Contingency is the only issue I see with that setup, as well sending the correct address for 911.

 

[teekow]

You will send the wrong address and more importantly you will send the call to the wrong location (the 911 call will go to the PSAP located where the PBX is).....a potentially sticky work around could be a zone dial plan where there is a prefix prepended to every dialed call that is placed from the branch phones. Then, for xxxx911 (xxxx is the zone prefix) you can use a DMI table to route the call over the PSTN to the equivalent non-emergency number at the branch location. This is normally answered by the same dispatcher that handles 911 calls but you would have to verify. VERY STICKY indeed......If your main concern is cost, leave what they have today or put in 5 POTS lines with 5 analog phones.....You could always add VOIP phones to that scenario and have them have 2 phones everywhere.....The problem is in a panic, generally people don't remember where they are calling from and don't want to remember to use the special "911 phone".
Good Luck
Rob

 

[guycable2]

Seems strange that the SRG 50 is more than the BCM 50. We have been evaluating both solutions lately and the SRG is supposed to be priced less. Our area Nortel salesman presented it that way to us anyway. Make sure your vendor is pricing it correctly.

 

[pbxn]

I think he may be adding in stuff, still not sure. Been emailing back and forth for a viable solution