Prestige 100 and 100IH ISDN Router and Router/Hub

7.5.1 How To Use Three Way Calling

If you wish to call someone and conference him/her in with an existing call:

Press the flash key to put the existing call on hold and receive a dial tone.

Dial the third party’s telephone number.

When you are ready to conference the calls together, press the flash key again to establish a Three Way Conference Call.

Note: If you wish to cancel your attempt to establish the conference call because the third party’s line in busy or if they don't answer, simply hang-up the telephone and pick it back up after it starts ringing to return to the first caller.

To drop the last call added to the three-way-call:

Simply press the flash key. The last call that was added to the conference is dropped.

To drop yourself from the conference call:

If you hang up your telephone during a three-way-call and the two other callers remain on the line, the ISDN network will do an implicit transfer to directly connect the two remaining callers together.

7.6Call Transfer

Call Transfer allows you to transfer an active call to a third party. This service must be subscribed from your telephone company.

7.6.1 How To Use Call Transfer

Transferring an active call to a third party:

Once you have an active call (Caller A), press the flash key to put Caller A on hold and receive a dial tone.

Dial the third party’s telephone number (Caller B).

When you are ready to conference the two calls together, press the flash key to establish a Three-Way-Conference call.

Hang up the telephone. The ISDN network does an implicit transfer to directly connect Caller A with Caller B.

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Advanced Phone Services

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ZyXEL Communications 100IH manual How To Use Three Way Calling, How To Use Call Transfer