fleabag, on Jun 18 2006, 16:46, said:
I think you may have to remove the zero from the voicemail access number.
Also, maximum T-Mobile supports is 25 seconds, minimum is 15 seconds.
The newer sims are 3v, support SIM clock stop and use smaller traces, all leading to ALOT less power consumption than the old old SIMs. The new sims also have bigger PLMNSel tables and forbidden PLMN, which help to get signal faster (its a record of which cells to try first, and which failed in the past so should be tried last). Also as said they store more phone numbers and in some cases SMS's. Its worth updating the SIM if possible, although be prepared for some downtime (should be 48 hours max) in case its not a smooth transition on the HLR.