How to transfer a call to extension or dial to other phone
For blind transfer:
Press “Transfer”, dial or select extension, press send/dial and hang up.
Press “Transfer”, dial or select extension, press “Send”, wait for the receiver to pick up, announce the caller, press “Transfer”, then hang up or join the call.
Click the following video to check the detail. https://m.youtube.com/watch?v=VqxyaC0eKXc