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Joined: Aug 2009
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Originally posted by ictelco:
Yeah its the "new" less expensive version of frame relay. I think it stands for Multi Protocol Layered Switching. It is supposed to route thru private network structure rather than the internet. In 3 years time, it has only had an issue 1 time. Absolutely no voice quality issues and with a ipgw4 it uses very minimal bandwidth. Definitely the way to go when connecting multiple locations with multiple pbx's. The two dsl locations with ip phones are only 1 phone at each location, and it works ok on that. I get the part that the systems are linked via MPLS but there must be an internet connection as well If you have remote sites that have ip phones runninig....
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Joined: Mar 2009
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Correct, some ip phones are connected via dsl vpn. There are some ip phones connected via the mpls on the network at pbx location 2, but not physically connected to pbx 2. It's all about the ip addresses of the phones and the ip address of the ipext16. If you can ping the card from anywhere on the network or vpn, the ip phones should connect.
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Joined: Aug 2009
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Joined: Jun 2010
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Thanks for all the info guys. So all i would need an IP-EXT16 VoIP card in the PBX unit at location A and then connect the phone to the internet at location B, then have them talk to each other through a VPN network, right?
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Joined: Aug 2009
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yes and no. what do the do with their local pstn lines at location B? are they going to have two phones on there desk?
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Joined: Jun 2010
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I was thinking only one connected to the internet via an Ethernet cable.
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Joined: Aug 2009
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you didn't really answer my question what type of phone is on the desks in dc now ?
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Joined: Jun 2010
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Sorry, currently we don't have a phone in DC. We would be using an IP one but havent gotten that far seeing as we don't know how to set the whole thing up.
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Joined: Mar 2009
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Think of it this way. The ip phone in DC connected to the TDA in Colorado would be like streching a long line cord from the pbx to the phone. All calls originated from the ip phone would use the resources (lines) in Colorado. If DC dialed 911 from the ip phone, it would appear to the psap as though the call originated in Colorado. So if you are not needing a published number for DC and calls went thru an 800 number in Colorado, that might be ok. If you need to have a published number in DC and some sort of connectivity to Colorado, then you would have a system at both locations, and connect them via gateway cards/resources.
Sorry if this is too basic, but sometimes understanding ip connectivity needs to start at square 1.
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Joined: Aug 2009
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they really should come up with a ip phone that has a pstn port on it
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