Cisco 521SG Administration Guide - Page 184

Configuring Regional Parameters and Supplementary Services Configuring Supplementary Services (Star Codes) 7 • Referral Services Codes-One or more * codes can be configured into this parameter, such as *98, or *97|*98|*123, and so forth. The maximum total length is 79 characters. This parameter applies when the user places the current call on hold (by Hook Flash) and is listening to second dial tone. Each * code (and the following valid target number according to current dial plan) entered on the second dial-tone triggers the Cisco IP phone to perform a blind transfer to a target number that is prepended by the service * code. For example: - After the user dials *98, the Cisco IP phone plays a special prompt tone while waiting for the user the enter a target number (which is validated according to the dial plan as in normal dialing). - When a complete number is entered, the Cisco IP phone sends a blind REFER to the holding party with the Refer-To target equals to *98 target_number. This feature allows the Cisco IP phone to hand off a call to an application server to perform further processing, such as call park. The * codes should not conflict with any of the other vertical service codes internally processed by the Cisco IP phone. You can delete any * code that you do not want the call server to process. Feature Dial Services Codes: Tells the Cisco IP phone what to do when the user is listening to the first or second dial tone. You can configure one or more * codes into this parameter, such as *72, or *72|*74|*67|*82, and so on. The maximum total length is 79 characters. When the user has a dial tone (first or second dial tone), they can enter a * code (and the following target number according to current dial plan) to trigger the Cisco IP phone to call the target number prepended by the * code. For example: - After the user dials *72, the Cisco IP phone plays a special prompt tone while waiting for the user the enter a target number (which is validated according to the dial plan as in normal dialing). - When a complete number is entered, the Cisco IP phone sends an INVITE to *72 target_number as in a normal call. This feature allows the proxy to process features such as call forward (*72) or BLock Caller ID (*67). Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 183