Appendix A Using SIP Supplementary Services

Common Supplementary Services

Step 5 To conference with both callers at the same time, perform a hook flash, then press 3 on the telephone keypad. Once you conference all three callers, the only way to drop a caller is for that caller to hang up.

Step 6 (Optional) To conference in additional callers, the last person called with a Cisco ATA can call an additional person, that new person can call someone else, and so on. This is known as “daisy-chaining.”

Call Waiting in the United States

If someone calls you while you are speaking on the telephone, you can answer by performing a hook flash. You cannot conference in all three callers, but the first person you called could call someone else and daisy-chain them into the conference.

When the Cisco ATA is configured to use Call Waiting by default, press *70 on your telephone keypad to disable Call Waiting for the duration of the next call.

Call Waiting in Sweden

If someone calls you while you are speaking on the telephone, you can answer by performing a hook flash then pressing 2 on your telephone keypad, or you can conference them with the person to whom you are already speaking by performing a hook flash then pressing 3. You can also perform a hook flash then press 3 later during the call to create a conference call.

Performing a hook flash then pressing 1 hangs up the first caller and answers the second call. If there is no answer after one minute, the caller receives three beeps and a busy signal.

To enable call waiting for Sweden, press *43#. When the Cisco ATA is configured to use Call Waiting by default, press #43# to disable Call Waiting for the duration of the next call.

About Call Forwarding

In SIP, the Cisco ATA can control call forwarding and call return.

There are three types of call forwarding:

Forward Unconditional—Forwards every call that comes in.

Forward When Busy—Forwards calls when the line is busy.

Forward on No Answer—Forwards calls when the telephone is not answered after the configured period of 0-63 seconds.

You can activate only one of these services at a time.

Call Forwarding in the United States

Forward Unconditional

Press #72 on your telephone keypad; enter the number you want to forward call to; then press # again.

Forward When Busy

Press #74 on your telephone keypad; enter the number to forward the calls to; then press # again.

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)

 

OL-3410-01

A-5

 

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Cisco Systems 186, 188 manual Call Waiting in the United States, Call Waiting in Sweden, About Call Forwarding