Why not just conference call the person you want to transfer to, and then back out yourself from the call?
To remove yourself from a conference permanently (unsupervised conference):
Press FEATURE 70.
The other two callers remain connected. (Some external lines may not support this feature.)
To put a conference on hold:
Press HOLD. The other two callers can still talk to each other, but they will hear your music on hold for the duration of the call being on hold.
To split a conference:
Press the line or intercom button of one caller to consult privately while the other caller is on hold.
Note: This feature is not available for multi-party conference calls.
To re-establish the conference: Press FEATURE 3.
To disconnect one party:
1. Press the line or intercom button for the caller you want to disconnect.
2. Press RLS.
3. Press the line or intercom button to resume your conversation with the other caller.
To independently hold two calls:
1. Press the line or intercom button of the first caller.
2. Press HOLD. The second caller is automatically put on hold.
Note: This feature is not available for multi-party conference calls.
To re-establish the conference:
1. Retrieve one call from hold.
2. Press FEATURE 3.
3. Retrieve the second call from hold.