ah.. you're coming right on cue.. :) why is it, that nokias sip implementation isn't 100% compatible to the standard, and therefore does not work (handshaking problem) with most sip providers, at least here in CH? my n95 only works when proxying through a free, less standards compliant PBX service.. (e.g. pbxes.org). the problem seems to be well known, but not solved since years?! really annoying..
It works very well with Sipgate here in Germany. However, I do have an issue with it with my Wifi setup in France. I took a trace today and will compare it to what it does when I am in France. Let's see.
the symptom here with our sip providers is that the client does register, does receive calls, but fails to handshake when attempting an outgoing call. see also here for an ack of one of our sip providers..: http://tinyurl.com/342ccu
too bad sipgate doesn't do business here.. ;)
nice blog post :) funny that you mention the voip over cellular thing. just today i tested a sip call over 3G, and although it woks well (except for the huge latency), it indeed seems to drain the battery incredibly fast when sip is in standby mode.
yep. see this video for example about why ipv6 is so important to further lower power consumption of "always connected" mobile phones in future (was already posted here in jaiku by constantine some weeks ago..)
12 comments so far
ah.. you're coming right on cue.. :) why is it, that nokias sip implementation isn't 100% compatible to the standard, and therefore does not work (handshaking problem) with most sip providers, at least here in CH? my n95 only works when proxying through a free, less standards compliant PBX service.. (e.g. pbxes.org). the problem seems to be well known, but not solved since years?! really annoying..
1 year, 10 months ago by afr
It works very well with Sipgate here in Germany. However, I do have an issue with it with my Wifi setup in France. I took a trace today and will compare it to what it does when I am in France. Let's see.
1 year, 10 months ago by Mobilesociety
the symptom here with our sip providers is that the client does register, does receive calls, but fails to handshake when attempting an outgoing call. see also here for an ack of one of our sip providers..: http://tinyurl.com/342ccu too bad sipgate doesn't do business here.. ;)
1 year, 10 months ago by afr
Interesting tip, thanks! Sipgate works in CH, too if you can live with a German phone number ;-)
1 year, 10 months ago by Mobilesociety
Here's how the N95 works in practice: http://mobilesociety.typepad.com/mobile_life/2008/03/tracing-the-n95.html
1 year, 10 months ago by Mobilesociety
interesting to see what you uncover from the setup in france!
1 year, 10 months ago by cybette
@cybette: Ah, nice to see I have raised your interest :-) I will let you know
1 year, 10 months ago by Mobilesociety
nice blog post :) funny that you mention the voip over cellular thing. just today i tested a sip call over 3G, and although it woks well (except for the huge latency), it indeed seems to drain the battery incredibly fast when sip is in standby mode.
1 year, 10 months ago by afr
@afr now you know why :-) The frequent signaling has less of an impact over wifi for the battery.
1 year, 10 months ago by Mobilesociety
yep. see this video for example about why ipv6 is so important to further lower power consumption of "always connected" mobile phones in future (was already posted here in jaiku by constantine some weeks ago..)
1 year, 10 months ago by afr
link: http://www.youtube.com/watch?v=o5RbyK0m5OY
1 year, 10 months ago by afr
Good link, thanks! Will blog about it soon.
1 year, 10 months ago by Mobilesociety