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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones

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2. Enter the desired timer in the ACD Subscribe Period field.

3. Click Confirm to accept the change.

To configure an ACD key via phone user interface:

1. Press Menu->Features->DSS Keys.

2. Select the desired DSS key.

3. Press or , or the Switch soft key to select ACD from the Type field.

4. (Optional.) Enter the string that will appear on the LCD screen in the Label field.

5. Press the Save soft key to accept the change.

SCA allows users to share an extension which can be registered on two or more IP

phones at the same time. For more information on how to register accounts, refer to

Account Registration on page 112.

Any IP phone can be used to originate or receive calls on the shared line. An incoming

call can be presented to multiple phones simultaneously. The incoming call can be

answered on any IP phone but not all. A call that is active on one IP phone will be

presented visually to other IP phones that share the call appearance.

IP phones support SCA using a SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265.

The events used are:

 “call-info” for call appearance state notification

 “line-seize” for the IP phone to ask to seize the line

SCA supports the IP phones barging in an active call. In addition, SCA has the call pull

capability. Call pull feature allows users to retrieve an existing call from another shared

phone that is in active or public hold status.

If the call is placed on public hold, the held call is available for any shared party to

retrieve. If the call is placed on private hold, the held call is only available for the hold

party to retireve. You need to configure either the private hold soft key or a private hold