[Asterisk-Users] Unwated outgoing Zap channel briding

[izo]

Hi,
I have a problem with our office PBX where outgoing FXO Zap channels
get bridged and
i cannot receive or make any phonecalls.
First I disabled flash function and we are using # sign to do
transfers between internal lines
but it still happends from time to time.
So is there a way to specify that certains channels lets say 1-4
should not be bridged togather
EVER ??

regards
m.