[Asterisk-Users] BT101 new firmware problem (1.0.6.3)

[Elwin Andriol]

Hello,

We found out that after upgrading the firmware in our GrandStream 
BudgeTone phones, that we were not able to transfer calls anymore. We 
use the BT's own tranfering mechanisme. We can dial the phone where the 
call should be tranfered to. But after that, the original caller stays 
in music on hold on the server and there's no way to get the calling 
channel back again (not to the first receiver, nor to the transfering 
target).

At first I was thinking it had something to do with the asterisk, 
because upgraded to version 1.0.7 a week ago. Though, the strange thing 
is that we also have some elmeg/snom190's and they do not have this 
transfer problem.

Not being able to transfer calls is a major problem. I'm puzzled. I 
didn't thought upgrading a firware would distroy existing functionality.

The new firware version in the BT's is 1.0.6.3, the old firmware was 
still one of the 1.5.x series. We are unable to downgrade the firmware. 
Something to do with missing files in the older versions compared to the 
new one.

Is there anybody that has similar problems with the BT's?
Is there anybody that might have an idee or advise how to fix this?

Please

regards;
elwin