Cheap and Reliable IP Telephony? 62
anomalie asks: "I am trying to sell IP telephony to my employer. The idea was shot down once already because of the cost (using a Cisco solution). I would like to find a cheap but reliable IP PBX because everyone liked the idea of IP telephony, just not the price associated with it. I need a system that could initially handle about 80 users at a single location, and eventually handle about 350 users at 7 locations. The two systems I have been looked at so far are Asterisk & Pingtel's SIPxchange IP PBX. I'm not looking here for a final solution, just some starting points for more research. Any feedback/tips/warnings from the Slashdot community?"
"I am looking to have at least the following capabilities:-Auto attendant
-Handle a PRI (hopefully allow forwarding of old PBX DIDs)
-Handle long distance T1 (we would initially segment off some channels from our current PBX)
-Handle WAN Traffic so we could utilize our unused channels for long distance from other locations
-Forwarding of voicemails to email
Nice optional features:
-Web based GUI for voicemail administration
-GUI call manager
Eventually, we would have relay units at the other locations to handle the local calls and call routing and have 1 central PBX at corporate headquarters."
What problem are you trying to solve? (Score:5, Insightful)
You should probably think things over. (Score:5, Insightful)
The largest sum of money spent on phone systems is usually interoffice calls. Why would you set up IP phones in a single location as your goal, then add more offices as a secondary "good to have?"
This is not sound economics -- just because speaking over your cat5 network is cool does not make it a smart thing to do.
Re:You should probably think things over. (Score:3, Insightful)
The largest economy of money VoIP can provide is in international calls. Some countries can have ridiculous fees, like $5/min.
VoIP leaves the company free to have some parts - like customer assistance - in another part of the world. That can mean lower costs.
Cost vs Savings? (Score:5, Insightful)
Don't just look at the actual cost, run the numbers on everything else too. If it doesn't work out now, stick with current setup until either the numbers work out better or until the added features justify the cost.
Also, I personally wouldn't want to stake my company's phone system on a smaller vendor. We looked primarily at Cisco, 3Com, Nortel, and Avaya. All three have good reputations in the industry.
Jason
Similar experience with Cisco (Score:5, Insightful)
Like parent poster said, it sucks when your network goes down and you reach for the phone only to see that it's also rebooting, and you are stranded.
Granted this was a year and a half ago, but you're still taking the risk of much greater technical complexity, plus sharing a network that can be brought down by a lot of other factors (whereas POTS is independant).
Before you get on the boat, you'd better be able to point to a significant savings to justify it AND you have to either factor in downtime, or pay for a bank of backup standard phone lines. Here's a good tip for evaluating providers -- ask them for contact info for a few current customers that you can talk to. They should be able to find one who can share the experiences so far. You do NOT want to be the guinea pig on the cutting edge.