I had very few problems being on a call and answering texts from another person on my 8320 (T-Mobile). But since upgrading to .46 I've had multiple reboots while on phone call and texting.
Is this one of the "leaks" that was an issue and is there an updated beta out now that might solve this leak? The constant rebooting and waiting upwards of 5 minutes for the phone to go live again is annoying to say the least!
Other than that, I am enjoying the new features OS 4.5 will bring to the BB