C905 VOIP/SIP Support?

[RadioRaiders]

I have a C905 and while it has a menu setting for SIP, I can't seem to get it working:

I entered my sipphone.com account details...but then what? The User Guide says nothing other than these settings exist. No mention on how to used it (by comparison the Nokia S60 User Guide goes into great details about it's SIP functions). The C905 doesn't even seem to have STUN support

...anyway, if anyone has a C905 and got the SIP working, please let me know. I have set up several SIP phones at home successfully, so I'm no stranger to SIP, but the C905 makes no sense

[twocat_cph]

I contacted Sony Ericsson in Denmark , and they told me , that they dont know anything , other than it needed some software to work and refused to tell me what software and how to get it to work , because they was not allowed to tell me , so rude and stupid that they wasnt allowed to tell . and told me to contact my voip provider , and they probably not know anything .

with my N95-8GB , voip works well .
but i dont understand why SE put sip option in c905 when we cant use it , i also put all details in the meny . and nothing happen , its not working .

[RadioRaiders]

^ Ok, good to know I'm not the only one suffering from not being able to use the SIP function on the C905

...yea, really strange why SE would do the SIP so half-a$$ed. Either put it on there in a working and supported way, or don't do it at all

[ThorsDad]

Has anyone ever found a solution to enabling SIP on the C905? I just got VOIP with SIP credentials and thought I could use my C905 but it seems to need an app that I can't find anywhere.