Radio - can't make outbound call if use data connection

[voipster]

Very strange problem I'm having. My phone can make/receive phone calls if there is no DATA connection going on. As soon as I make a DATA connection (Opera, IE) and then try and make an outbound call, I get an error. I have to click on the Ev icon at the top, Data Network Connect (Dial-Up) and click Disconnect. Then I can make an outbound call. The strange thing is I can still RECEIVE phone calls.

Been happening a lot, but now I'm trying to duplicate it and am not getting the error or I would include the error message.

I did recently upgrade the radio to 1.41. Maybe I should go to 1.43?

I'm currently running: Windows mobile 6.1

ROM Version: 3.61.00 WWE
ROM:11/07/07
RADIO:1,41.00
Protocol Version: SNAZ-40306
ExtROM:3.14.208 WWE
Hardware version: 0041
PRL Version: 50989
PRI version:1.14_002

[HawtDogFlvrWtr]

I have the exact same phone with the same configuration other than i am currently running 1.43. I would give that a try. It won't hurt anything believe me.

[voipster]

I believe I figured out the problem. I configured VoIP using the cooked-in Schap 'Setup VoIP version 0.3' app adding a new provider called "SIP-TMC". Once I kick off a data session via IE, Opera, etc. it attempts to register with my SIP-based PBX. I think whether it registers or not, the Phone dialer changes the provider to "SIP-TMC" and tries to initiate ALL outbound calls through my SIP server. I have to DISCONNECT the data connection and then my service goes back to "Verizon Wireless" and THEN I can make outbound calls again.

I guess I didn't realize it was trying to go through "SIP-TMC" when dialing. Once I did figure out why it wasn't registering with my SIP server (firewall issues) I was able to make & receive VoIP calls over the EVDO connection.

Only problem is I can't seem to easily toggle providers back & forth - from SIP/VoIP over EVDO to Verizon Wireless cellular calls. I have to disconnect my data connection to get it to back to Verizon Wireless. Maybe that's just the way the cookie crumbles. Or maybe there is a skin out there that lets you click on the provider and change it on the fly. Anyone?