Administrator’s Guide for W60P/W53P/W41P DECT Phones142Off Hook Hot Line DialingFor security reasons, IP phones support off hook hot line dialing feature, which allows the phone to first dial out thepre-configured number when you dial out a call using the account with this feature enabled. The SIP server may thenprompts you to enter an activation code for call service. Only if you enter a valid activation code, the IP phone will usethis 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. Theserver actions may vary from different servers.It is also applicable to the IP call and intercom call.NoteOff hook hot line dialing feature limits the call-out permission of this account and disables the hotline feature. Forexample, when the phone goes off-hook using the account with this feature enabled, the configured hotline number willnot be dialed out automatically.TopicOff Hook Hot Line Dialing ConfigurationOff Hook Hot Line Dialing ConfigurationThe following table lists the parameters you can use to configure off hook hot line dialing.Parameter account.X.auto_dial_enable[1] .cfgDescription It enables or disables the IP phone to first dial out a pre-configured number when a user dials out acall using account X.Permitted Val-ues0-Disabled1-Enabled, the phone will first dial out the pre-configured number (configured by the parameter“account.X.auto_dial_num”).Default 0Parameter account.X.auto_dial_num[1] .cfgDescriptionIt configures the number that the IP phone first dials out when a user dials out a call using account X.Note: It works only if “account.X.auto_dial_enable” is set to 1 (Enabled).Permitted Val-ues String within 1024 charactersDefault Blank[1]X is the account ID. X=1-8.Call TimeoutCall timeout defines a specific period of time after which the IP phone will cancel the dialing if the call is not answered.TopicCall Timeout ConfigurationCall Timeout ConfigurationThe following table lists the parameter you can use to configure call timeout.