Yealink T27P

Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
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3. Enter the delay time in the Hotline Delay (0~10s) field.
4. Click Confirm to accept the change.
To configure hotline via phone user interface:
1. Press Menu->Features->Hot Line.
2. Enter the hotline number in the Hot Number field.
3. Enter the waiting time (in seconds) in the Hotline Delay field.
4. Press the Save soft key to accept the change.
For security reasons, IP phones support off hook hot line dialing feature, which allows
the phone to first dial out the pre-configured number when the user presses the
speakerphone key or desired line key, dials out a call or off hook the phone using the
account with this feature enabled. The SIP server may then prompt the user to enter an
activation code for call service. Only if the user enters a valid activation code, the IP
phone will use this account to dial out a call successfully.
Off hook hot line dialing feature is configurable on a per-line basis and depends on
support from a SIP server.
Note
Off hook hot line dialing feature limits the call-out permission of this account and disables
the hotline feature. For example, when the phone goes off hook using the account with
this feature enabled, the configured hotline number will not be dialed out automatically.
The server actions may vary from different servers.
This feature is also applicable to the IP call and intercom call.