Voip between two offices

Madman88 said:
FFS. There is no need to have two servers.

If the two locations are on the same network then the geographical location is of no consequence. It doesn't matter where on the lan the sip extensions are, as long as they're on the same lan.

In fact they dont need to be on the same lan, but thats a different kettle of fish.

Surely if you guys do this for a living you can wrap your head around that?
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I'm still wondering why there are two servers to begin with myself.
 
paulcolmer said:
I did not say you require 2 servers, i said you require 1 only and it does not matter which site you put it on, or you use a server at a VoIP provider as sugessted by Mo-to, either way its still only 1 server !
Click to expand...

Ah, sorry.. reading like an arse..
 
paulcolmer said:
OK my friend this is how you do this if you want the calls to go PBX to PBX

1/ VoIP enable your PBX’ s @ 13k as quoted

IF you have spare extensions or trunk ports on the PBX’s you may look at this as well, if you don’t have you can always add.

2/ Put an FXS or FXO gateway at each end and get a VoIP account with a provider that allows free on net calls and rout via DSL or whatever.

3/ / Put an FXS or FXO gateway at each end and build an Asterisk box one end to drive them, Digium or Sangoma cards for the Asterisk box will be more expensive than a gateway, so best go the gateway route.

4/ Put an FXS or FXO gateway at each end and load a free soft switch like 3CX, Snom 1, BizPBX ect on a Windows PC to drive the gateways, these free edition soft switches will allow you between 2 & 4 concurrent calls depending on which one you choose, before you have to shell out for the paid versions. The lack of g729 codec is not an issue because you have so much available bandwidth on your link so g711 is ok.

5/ Put a gateway one end and cheap Yeastar PBX the other, the Yeastar can talk to the PBX at its own end and the gateway at the other.

These are your options if you want to make your calls from your existing extensions, other options are of course using dedicated IP phones or soft phones at each end.

So some food for thought, I can give you more detail on each solution if required.
Click to expand...

Thanks for all the info.

I dont want to rely on a internet connection to be able to make calls between the offices, i.e. not being able to make calls when we loose the dsl line for some or other reason. Also dont want to build my own server. Need it to be simple: configure once, and works while connected to power outlet.

Will the Yeastar work like this, and is it the only option?
 
leonb said:
Thanks for all the info.

I dont want to rely on a internet connection to be able to make calls between the offices, i.e. not being able to make calls when we loose the dsl line for some or other reason. Also dont want to build my own server. Need it to be simple: configure once, and works while connected to power outlet.

Will the Yeastar work like this, and is it the only option?
Click to expand...

The yeastar is the cheapest option. By far.

I have used yeastar in all my installations and I have never had a problem with the hardware.
I have just installed a MyPBX standard in my office and I'm impressed at how simple it was. A couple of things are not too clear in the manual , but I just contacted them via MSN and they helped me straight away.

I have heard that the Digium version may be better but its more than 3 times the price.
 
Get an Asterisk system from these guys. It might even be cheaper than the R13k you'll be paying for the new functionality on your old system.
 
Madman88 said:
The yeastar is the cheapest option. By far.

I have used yeastar in all my installations and I have never had a problem with the hardware.
I have just installed a MyPBX standard in my office and I'm impressed at how simple it was. A couple of things are not too clear in the manual , but I just contacted them via MSN and they helped me straight away.

I have heard that the Digium version may be better but its more than 3 times the price.
Click to expand...

Wil it work without internet connection?
 
leonb said:
Wil it work without internet connection?
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It will work perfectly without an Internet connection. I actually only got my voip line (FNB Connect) working properly yesterday.

Before that I had 3 analogue lines and a gsm line, tho you could dial between extensions without even those if you only wanted to make internal calls.
 
I still cannot get my head around this.

If both offices is on the same lan, and I have one voip gateway in each office, why is SIP needed/relevant? Both gateways has got an IP address, so why cant they communicate directly, and therefore sens the voip over the lan?
 
leonb said:
I still cannot get my head around this.

If both offices is on the same lan, and I have one voip gateway in each office, why is SIP needed/relevant? Both gateways has got an IP address, so why cant they communicate directly, and therefore sens the voip over the lan?
Click to expand...

You don't need a sip account with any provider. Simply download the latest build of Elastix from elastix.org. Install it on an old PC with 1Gb of ram. Then setup the side b as an an extension(s). On side a you setup your outward trunk as an extension on your analogue PBX. Bob's your uncle. This will cost you - nothing. As long as you have an old PC with a network port. Install time - less than an hour.

If you need help - holler
 
leonb said:
I still cannot get my head around this.

If both offices is on the same lan, and I have one voip gateway in each office, why is SIP needed/relevant? Both gateways has got an IP address, so why cant they communicate directly, and therefore sens the voip over the lan?
Click to expand...

Ok, I see why youre confused. Sip is a protocol. Its used on an outbound trunk (Sip trunk), but its also used for the extensions on the PBX (Sip extensions). When you have an extension running over the lan you would be using the Sip protocol for that extension. No Internet or trunk required for that.

Superspeed said:
You don't need a sip account with any provider. Simply download the latest build of Elastix from elastix.org. Install it on an old PC with 1Gb of ram. Then setup the side b as an an extension(s). On side a you setup your outward trunk as an extension on your analogue PBX. Bob's your uncle. This will cost you - nothing. As long as you have an old PC with a network port. Install time - less than an hour.

If you need help - holler
Click to expand...

I think you would at least need an internal voice modem to plug it directly into the analogue box, but otherwise if you're willing to do the install that will work fine.
 
paulcolmer said:
OK my friend this is how you do this if you want the calls to go PBX to PBX

1/ VoIP enable your PBX’ s @ 13k as quoted

IF you have spare extensions or trunk ports on the PBX’s you may look at this as well, if you don’t have you can always add.

2/ Put an FXS or FXO gateway at each end and get a VoIP account with a provider that allows free on net calls and rout via DSL or whatever.

3/ / Put an FXS or FXO gateway at each end and build an Asterisk box one end to drive them, Digium or Sangoma cards for the Asterisk box will be more expensive than a gateway, so best go the gateway route.

4/ Put an FXS or FXO gateway at each end and load a free soft switch like 3CX, Snom 1, BizPBX ect on a Windows PC to drive the gateways, these free edition soft switches will allow you between 2 & 4 concurrent calls depending on which one you choose, before you have to shell out for the paid versions. The lack of g729 codec is not an issue because you have so much available bandwidth on your link so g711 is ok.

5/ Put a gateway one end and cheap Yeastar PBX the other, the Yeastar can talk to the PBX at its own end and the gateway at the other.

These are your options if you want to make your calls from your existing extensions, other options are of course using dedicated IP phones or soft phones at each end.

So some food for thought, I can give you more detail on each solution if required.
Click to expand...

Can I use two fxs ata, or does one need to be a fxo? I have a spare extension on both side and was thinking of putting a fxs ata on both. My pbx tech says we need a fxo on one of the sides. He will then program them to connect directly without need for sip account. But why a fxo?
 
anyone used dundi before? going to be interconnecting about 20 sites together and was wondering if this was worth my time.
(and yes, all sites have leased lines and more then enough bandwidth)
 
avert said:
anyone used dundi before? going to be interconnecting about 20 sites together and was wondering if this was worth my time.
(and yes, all sites have leased lines and more then enough bandwidth)
Click to expand...

is dundi not kinda dead now?
 
no clue, but if thats the general feel. i wont use it ^.^
 
I never actually used Dundi, but in my understating it was a form of asterisk that used peer to peer protocols to control its sip extensions.

I would suggest some kind of normal asterisk setup for something that large. Have a box at each site and then just link them to each other.

You could probably run the whole shebang from a central location, but then if a line when down so would the phones.
 
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