SIP: Choosing sip account from SIP URI

Question

It is possible to store arbitrary strings in vcards, for example sip:[email protected], but unfortunately the inbuilt SIP client seems not to parse the URI and tries to reach myfriend at someregistrar.com, but uses the default account for all calls.
Is it possible to select the SIP account for outgoing calls on a call by call basis? Using IP adresses for calling should be possible as well, e.g. sip:192.168.1.1.
Is it possible to reach the phone via SIP even when it is not registered - most SIP clients are reachable via their FQDN/IP address
Thanks!
Nokia E51

Answer 1

Flodis79,
No need to delete/add anything repeatedly. You can do that but as you mentioned it's not easy.
I'm not doing this under "Settings". I only use settings to define the two SIP accounts (VoipBuster and TruPhone). For example Menu->Tools->Settings->Connection takes me to where my "SIP Settings" and "Internet tel. settings" can be changed. Not talking about modifying these at all. However, your SIP Settings for both providers needs to be set to Registration == "always on" if you really want this to work as I stated in my original post.
Where I'm switching is:
Menu->Connect->Internet tel
When you do this it may say "Discovering services" and takes a few seconds. When that's done you will see a message pop up if you are already connected. In my case I see "Already connected to TruPhone and VoipBuster". The message will go away and there is an "opions" button in the lower left corner.
Select it and you should get a menu that says:
Connect to service or Disconnect from serv
Change service
Refresh
Settings
Help
Exit
The "Change service" is what I use to do what you are asking about. The "Connect to service" or "Disconnect from serv" option just depends on you current state.
So in my case I just click change service and a list will pop up with the Net call service to use:
TruPhone
VoipBuster
Just pick the one you want and that's it. Go to your phone book and make your call. Switch between the two providers between calls.
You don't need to "Disconnect from serv" to change it. Just another option if you already have an active profile want to stop using a profile. Also, if you select Connect to service and your SIP profile Registration is set to "Always on" it will get changed to "When Needed" for some reason? Took me a while to figure that out.
Does that help?
Also, you don't need to store two versions of the same phone number for each SIP account. Just put the phone number in your address book and the client will add the @sipProvder.com to the phone number when you make an Internet call.