If you are a user of Running Voice 2.x this information from the PPCW.Net Support Forum, posted by Magnus Stolt from Pocket Presence, might be interesting for you:
Dear Running Voice GSM 2.0 users,
We have received reports from some costumers that they have experienced problems when switching between GSM and a data connection. Our engineers have put together a new setup with enhanced data connection support. This patch was issued last Thursday and should resolve any problems relating to a data connection.
I you have experienced problem when switching between data and GSM connection and your current version is no greater then 2.0.7* please contact firstname.lastname@example.org to obtain this updated version. (*Enter RVGSM and tap View/About to obtain the find out the current RVGSM version).
NOTE! You have to include a copy of the email confirmation the you received from the online purchase. THis works as evidence of ownership and without this document we will not be able to issue the upgraded version.
Magnus Stolt â€“ Support Manager
Cheers ~ Arne