Mobiles for VOIP
in [UK Mobile]
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From: Theo Markettos on 23 Apr 2010 14:43 In uk.telecom.voip R. Mark Clayton <nospamclayton(a)btinternet.com> wrote: > This does work, but is fiddly to set up, but once done it works very well > and reliably. > > The SIP works fine over wi-fi, with good call quality, quick set up etc. Well, that rather depends on what's at the other end of the wifi. I assume you mean ADSL or cable? Here it's a router with a builtin 3G dongle, so it's pretty much the same whether it's over wifi or the phone does the 3G. > There is a slight increase in battery drain. That's useful to know... I did wonder if such apps ate batteries for breakfast. If you leave such an app on all the time, how much battery life do you get? > Unexpectedly once set up over wi-fi it also works over 3G outbound and less > reliably inbound (if you are mobile), however the call quality is poor and > most service providers will cut you off if they notice. What do you mean that it's less reliable inbound? That registration fails because it doesn't send keepalive packets? Theo
From: R. Mark Clayton on 22 Apr 2010 21:18
"Theo Markettos" <theom+news(a)chiark.greenend.org.uk> wrote in message news:uVb*+588s(a)news.chiark.greenend.org.uk... > SNIP > > Nokia have a SIP client on various of their S40/S60 phones, and > third-party > clients can be loaded on other of their phones. This does work, but is fiddly to set up, but once done it works very well and reliably. The SIP works fine over wi-fi, with good call quality, quick set up etc. There is a slight increase in battery drain. Unexpectedly once set up over wi-fi it also works over 3G outbound and less reliably inbound (if you are mobile), however the call quality is poor and most service providers will cut you off if they notice. > > > I need this to run with no maintenance once I've set it up, so I need this > as bomb-proof as possible. For this reason I'm wary about deprecated or > beta software. I'd also like as many SIP options I can tweak as possible > (for example, to try to work around my NAT trouble), because I can't take > it > back once I've bought it. > > I suppose I'm limited to the Nokia phones that have wifi and can do both > Skype and SIP. > > So any comments on this strategy? In particular how reliable are these > mobile apps compared with a hardware VOIP phone? It seems that different > Nokias have different versions of their SIP client (2.1, 2.2, 2.3, 3.0, > 3.1)? Is there much to be gained by going for a phone with a later > version? > Does VOIP still cause significant battery drain? Any other things I should > watch for? > > Thanks > Theo |