[Asterisk-Users] Unsuccessful Native Bridge Between Zap Channels

[Kevin P. Fleming]

Andrew Kohlsmith wrote:

> being unable to native bridge between two different technologies makes 
> sense... but why wouldn't you be able to native bridge between two Zap 
> channels?  

If DTMF is required for call features, usually. If one of them is 
already in a three-way call that can also be a reason why the native 
bridge can't happen.