On Sun, 23 Mar 2008 19:36:48 +0000 (UTC), Gordon Henderson
<gordon+usenet@drogon.net> wrote:
[color=blue]
>In article <nc9du395ilnopl3viigfnm7drc0918j11d@4ax.com>,
>JakeD <JakeD@fsdsdvsdv.com> wrote:[color=green]
>>On Sun, 23 Mar 2008 10:02:32 +0000 (UTC), Gordon Henderson
>><gordon+usenet@drogon.net> wrote:
>>[color=darkred]
>>>>Is there a VOIP phone service that can be used via a mobile phone?
>>>
>>>I suspect you really want to ask the question: Is there a mobile phone
>>>that can be used via a VoIP service ...[/color]
>>
>>I can't see any error in my wording of my question. I like the VOIP
>>service I use (at home), because, unlike Skype, (as I understand it),
>>I can make calls to any landline or mobile, and any landline or mobile
>>can call me. The VOIP service is much cheaper for making calls abroad
>>than is the mobile phone service. So what I'd like to achive is to be
>>able to make calls via my VOIP provider, using my mobile phone,
>>without getting billed for a call by the mobile phone company. This
>>may be impossible; I don't know.[/color]
>
>Well - what you need is a mobile phone that can be used via a VoIP
>service ...
>
>Unless you are using Skype, nearly all VoIP providers use a standards
>based system called SIP. Some mobile phones have SIP software built in.
>Eg. The Nokia E95 and E90... Maybe others.
>[color=green]
>>I'm not very familiar with wifi internet access, at wireless hotspots,
>>but I was hoping that there was a way to make the call via the VOIP
>>service, once one is connected to the net (free of charge) at a wifi
>>hotspot. Perhaps not. My own VOIP customer services said not - but
>>then they are infamous for not knowing much! Or it could be true that
>>their own service cannot be accessed that way, but others can...[/color]
>
>So you need a phone with both a SIP client and Wi-Fi access...
>
>Once you can establish an Internet connection you should be able to use
>VoIP - however, in my experience, a busy Wi-Fi access point is worse
>than useless for making VoIP calls. VoIP is quite demanding in terms of
>what it needs to make it work, and it's easy for other users of the same
>Wi-Fi access point to interfere with VoIP communications. (And I don't
>even mean interfere deliberately, it's a shared resource, and if it's
>busy, then ...)
>[color=green]
>>I wouldn't expect to be able to receive incoming calls via the VOIP
>>service, on my mobile, necessarily, but I could hopefully pick up
>>messages left on my VOIP voice mail service.[/color]
>
>You need to either divert your VoIP service to your mobile number,
>or have a mobile phone with SIP and Wi-Fi, and be in-range of a Wi-Fi
>access point. I have no problems recieving a VoIP call on my mobile when
>I can satisfy those requirements.
>
>So even if you have this (which I do, with my Nokia E90), finding a
>"free" Wi-Fi access point is not easy, so you'll end up using a paid
>service which might well work out more expensive than simply making a
>call via the "normal" mobile phone network...
>
>Some contracts do give you free access to various Wi-Fi hot-spots, but
>you'll need to go through the contracts, websites, etc. to find this out.
>
>And of-course, you'll need the details from your VoIP provider to
>enter into your SIP+WiFi enabled mobile phone; server, username and
>password, which they might not have told you if you bought something
>pre-configured...
>
>Gordon[/color]

Thank you very much for clarifying a few things. I'm sad to note that
the phone I purchased the other day (Fujitsu-Siemens Pocket LOOX T810)
doesn't have SIP. It has just about everything else, but not SIP! Oh,
well... Perhaps there is still a way, somehow...

JD