[Asterisk-Users] call waiting ?

[justin]

Hi Guys


Im just wondering if someone can help me with call waiting please. 
Everything is working realy well. Im quite impressed with asterisk :) 
Currently im using grandstream phones with the .50 firmware and the lastest 
stable version asterisk , 1?. I'm also using the g729 codecs.
Im trying to disable call waiting using callwaiting=no and incominglimit=1, 
outgoinglimit=1 (was this taken out ?) in my sip.conf. If i do that setup 
it works alrite however i cant do the flash transfer thing to check if the 
person you want to transfer to is busy or not before the transfer. As it 
seems to treat my user as having 2 incoming calls ??
Anyone know how i could get around this while still being able to do the 
flash before transfer. ?

Thanks heaps for your help

Justin