Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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Features->General Information->Hotline Delay(0~10s)
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Features->Others->Hot Line->Hotline Delay
T42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2:
Menu->Features->Hot Line->Hotline Delay
Off Hook Hot Line Dialing
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 you lift the handset, press the Speakerphone key or desired
line key, dial out a call using the account with this feature enabled. The SIP server may then prompt you
to enter an activation code for call service. Only if you enter 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. The server actions may vary from different servers.
It is also applicable to the IP call and intercom call.
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.
Topic
Off Hook Hot Line Dialing Configuration
Off Hook Hot Line Dialing Configuration
The following table lists the parameters you can use to configure off hook hot line dialing.
account.X.auto_dial_enable
[1]
It enables or disables the IP phone to first dial out a pre-configured number when a
user lifts the handset, presses the Speakerphone or desired line key or dials out a call
using account X.
Note: Line key is not applicable to T19(P) E2 IP phones.
0-Disabled
1-Enabled, the phone will first dial out the pre-configured number (configured by the
parameter “account.X.auto_dial_num”).
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