Hello 
Could someone please provide an update on voIP providers; I am looking for
one for the clinic that offers IAX trunking. Is Nehos still providing a good
service? 

So far Nodefone is the only one I have been able to identify that supports
the T.38 protocol, ie the protocol for faxing/eftposing etc over IP. Any
comments on nodefone?

Rgds
Michael







-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Neil D. McAliece
Sent: Tuesday, 24 January 2006 10:04 AM
To: General Practice Computing Group Talk
Subject: Re: [GPCG_TALK] VoIP providers / Codecs




----- Original Message -----
From: David Guest <[EMAIL PROTECTED]>
To: OzdocIT <[email protected]>
Sent: Mon 23 Jan 2006 21:17:50 EST
Subject: Re: [GPCG_TALK] VoIP providers / Codecs

Snip....

>Asterisk is an amazing project and I am stunned by the number of techies
>who have no interest in linux per se but are happy to roll up their
>sleeves and do what it takes to get asterisk working. 

I've spoken to a couple of guys in traditional phone contracting who are
keen but very daunted. There was one guy who I spoke to briefly who was
going to send one of his staff members to do some Asterisk training. I guess
that so many who haven't used Linux are keen is an indication of how
stiffling closed box telephony can be. I think traditional PABXs have become
better value for money in recent years though. Some offer H323 & SIP VoIP
without asking for tens of thousands of dollars more now.

Snip

>Ten cents a call
>Australia wide untimed seems to be the go for the SIP providers. Can
>anyone do better than that on 711?

With Nodephone you get end to end QoS if your router supports it, so quality
wise it might be worth sticking with. Even so, you would probably fair
better with QoS on Internode when not using Nodephone. It's like pulling
teeth trying to find out which ISPs have routers that acknowledge and act on
ToS bits. As far as I gather almost none of them do. Internode does but it
was an interesting process determining it and having it confirmed:
http://tinyurl.com/8a9lr

Internode don't do QoS on Nodephone based on ToS bits, so Nodephone will
still be prioritised above everything else at their end.

Most providers support a range of codecs including g711 and you just need to
set the preferred codec in your device (or Asterisk etc). Some providers
just don't seem to get the quality right and blame the customer's setup.
There are a lot of variables that can mess things up but sometimes when you
switch providers you notice a big difference without changing anything at
your end.

I've been using Astratel (www.astratel.com.au) for home calls. I don't know
what they offer in the way of DID (direct indial number, or standard phone
number). I'm just using their Talkfree prepaid account with no monthly fee.
At certain recharge amounts you get bonus call dollars making the cost a
little less than 10c a call.

Astratel were a shambles 12 months ago. Web site still isn't great, but at
one stage you were lucky if you could get a working account set up. Users
persisted though because they persistantly had great call quality. I suspect
that they terminate all calls at one point in Sydney or Melbourne rather
than rerouting calls over the net before terminating to PSTN. Somewhere on
their site is a link to an Optus wholesale newsletter announcing their
purchas of 200 million minutes of network time. Their support is probably
still patchy,  but they have improved heaps.

I'm still not game to use them for business. The only way to get multiple
simultaneous calls is to sign up multiple SIP accounts. With Nehos & IAX
$14.95 per month gives us simultaneous calls limited only by our bandwidth
(currently 30-40 which is far more than we need)

Neil

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