Answer call and forward

I want an operator answer a call and then forward it to a specific SIP phone. how can I implement that in my dialplan.

I imagine you mean to transfer the call. You would simply use the transfer button on the sip phone.

the transfer button is desable and a call can be transfer when using an analog phone insted of sip phone

If you want to setup a forward on a sip phone since the transfer button is disabled follow this link: … forwarding