Two seperate accounts in one office - transfer calls?

#1
Hey All

First time user but never less I think this is a fairly unique question and not the usual noob type question so, here goes.

I share an office with another business, we have two phones and they have four. Our work is interconnected and we often take calls on each others behalf or transfer calls across from one group to another so I can act as there web guy or they can act as my design guys etc.

So... we would like to get two accounts set-up to separate our billing where group A would have a hunt group, group B would have a hunt group and we all numbers would have a direct line.

Question 1
Can we have two separate accounts with separate billing on the same IP address?

Question 2
Can we transfer calls between these two separate groups over the voip?

Question 3
Can we conference between the two separate groups

Thanks all
Marcus
www.vinyltodigital.co.uk
Copy VHS to DVD & Vinyl to CD

Re: Two seperate accounts in one office - transfer calls?

#2
Hi,

Hopefully this will answer all your questions!
marcusmiller wrote: Question 1
Can we have two separate accounts with separate billing on the same IP address?
Yes - we do that.
marcusmiller wrote: Question 2
Can we transfer calls between these two separate groups over the voip?
Yes - and Voipfone to Voipfone number transfers will be free.
marcusmiller wrote: Question 3
Can we conference between the two separate groups
Yes - and as above, this will be free for calls between Voipfone numbers,

Regards,

Lawrence
Larrytech Ltd

Extension-to-extension calls on the same LAN

#3
I have some additional questions about having say 10 extensions on the same LAN at the same physical location and amount of WAN bandwidth (brodaband bandwidth) needed to support 10 extensions:

1. Do extension-to-extension calls go over the LAN or go over the WAN thus requiring broadband bandwidth for essentially local calls.

2. How much WAN bandwidth should I have to support 10 extensions (same physical location, same LAN) and 2 incoming lines?

Thanks.

#4
All calls (including internal calls between extensions on the same LAN) go via Voipfone.

The bandwidth you need depends on the maximum number of concurrent calls you expect to need to handle (including internal ones), and the codec you're using.

The codec is the method that's used to change analogue audio into a digital signal. There's a variety of ways of doing this, each with different characteristics in terms of bandwidth usage and audio quality.

The default is usually a g.711 codec, which takes about 100Kb/s per call. It's great quality, but you'll only get that quality on a pure VoIP-VoIP (or SIP-SIP) call. If the majority of your calls are to or from the old telephone network, you're using unnecessary bandwidth.

Most people will lose nothing by switching their phones to the GSM codec (the same one used by mobile phones). This uses just 40Kb/s per call.

So if you're expecting to handle 5 concurrent calls, you'd need at least 200Kb/s for GSM and 500Kb/s for g.711.

Also, be aware that you need this bandwidth in *both* directions! Most ADSL providers only quote the downstream bandwidth. You need the calculated bandwidth in the upstream direction too.

#5
Some more detail here:

http://www.voipfoneuserforum.com/viewtopic.php?t=1744
Regards,

Voipfone Customer Services

iNet Telecoms Ltd (Voipfone)
Sovereign House
227 Marsh Wall
London
E14 9SD
United Kingdom

Registered number: 05168033
Vat Registration Number 858850966

Telephone: 020 7043 5555
Fax: 020 7043 5556

Web: http://www.voipfone.co.uk
Blog: http://www.voipfoneblog.co.uk
Forum: http://www.voipfoneuserforum.co.uk
Twitter: http://www.twitter.com/voipfone

Isn't it a waste of expensive WAN bandwidith?

#6
Thanks for the reply and the link to "Optimizing your Voipfone Set-up".

It seems to me that passing each ext-to-ext call through Voipfone via WAN is just a waste of expensive broadband bandwidth (and Voifone server resources) when both extensions are local, no PSTN is involved, and no billing is compromised.

Is it possible to "re-configure" Voipfone to avoid that?

I have heard that using SIP protocol, it is possible to separate the audio path and allow two phones to talk to each other without keeping a PBX server in the loop.

Thanks and Regards,
p2pvoice

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