How prevent extension transfring call to other exention


i searched alot in internet about preventing extention from transfering specific extentions.

i mean i could allow extention to dial specific extentions only , but cant control the call transfer…

any help with that ?

Your searches should have revealed that there are at least three different transfer modes commonly encountered with Asterisk. Which one are you using?

They should also have revealed dialplan and technology driver configuration file options that control transfers. What combinations of these have you tried.