Cisco SPA IP Phone Field Reference
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Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 263
B
Referral Services Codes These codes tell the IP phone what to do when the
user places the current call on hold and is listening to
the second dial tone.
One or more *code can be configured into this
parameter, such as *98, or *97|*98|*123, etc. Max total
length is 79 chars. 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 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 IP phone
plays a special dial tone called the Prompt Tone while
waiting for the user the enter a target number (which is
checked according to dial plan as in normal dialing).
When a complete number is entered, the IP phone
sends a blind REFER to the holding party with the
Refer-To target equals to *98<target_number>. This
feature allows the 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 IP
phone. You can empty the corresponding *code that
you do not want to IP phone to process.
Parameter Description
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