I have tested a list of nokia phones to run SIP over GPRS and WLAN.
I fould out that some phones (possibly related to their firmware) unable to initiate or receive sip calls over GPRS.
I am trying to figure out if I am making a mistake on the settings.
I installed "SIP VoIP Settings" apllication to all test platforms and I have Ethreal running on my server side.
-An E65 runs perfectly on GPRS can make calls receive calls. V1 firmware.
On the screen of the device I see both Edge sign and Phone over the world sign.
Following devices failed on GPRS. The SIP section shows registered but the phone over the world sign is missing.
SIP signal captures Include Successful registration messaging.
Devices even sends periodical CRLF messages to the sip server. All devices are configured to register on WCDMA in the SIP VoIP settings application.
1) E65 with V2, E65 with V3, E66 (102.07.81), E71, N95
The capture shows that, when a call initiated to the nokia phone from the server the nokia device responds with a trying then an immediate Busy (487). This should be something related with the sip application. It also can not make out bound calls no Invite messages are send from the nokia phone.
I am stuck here.
I am in desperate need of help to resolve this issue.
Thanks in advance.