like you see in picture there are 3 phones.
i pick up phone-1 and dial phone-2 and say " i will transfer you to phone-3 than i dial # and its extension but it do not transfer why ?
More info please.
What hardware are you using for the hand sets ?
What version of asterisk are you running ?
Thanks
Chris
Have you used the t option for Dial command for phone 2?
Do you have the correct dtmfmode?