102 3Com® VCX V7111 VoIP Gateway User GuideParameter DescriptionMWI Subscribe ExpirationTime[MWIExpirationTime]MWI subscription expiration time in seconds. The default is 7200 seconds. Therange is 10 to 72000.MWI Subscribe Retry Time[SubscribeRetryTime]Subscription retry time in seconds. The default is 120 seconds. The range is 10to 7200.Stutter Tone Duration[StutterToneDuration]Duration (in msec) of the played Stutter dial tone, which indicates that CallForwarding is enabled or that there is a waiting message(s).The default is 2,000 (that is, 2 seconds). The range is 1,000 to 60,000.The Stutter tone is played (instead of a regular Dial tone), when a Call Forwardis enabled on the specific port or when MWI is received. The tone is composedof a ‘Confirmation tone’, which is played for a user-defined duration(StutterToneDuration), followed by a ‘Stutter tone’. Both tones are defined in theCPT file. This parameter is applicable only to FXS gateways. The message waiting notification (MWI) tone takes precedenceover the call forwarding reminder tone.For detailed information about Message Waiting Indication(MWI), see Message Waiting Indication.Conference ParametersEnable 3-Way Conference[Enable3WayConference]Enables or disables the 3-Way Conference feature.Valid options include:Disable [0] = Disables 3-way conference feature (default)Enable [1] = Enables 3-way conference featureEstablish Conference Code[ConferenceCode]Defines the digit pattern that once detected, generates the Conference-initiatingINVITE when Enable3WayConference is set to 1.The valid range is a 25-character string. The default is “!” (Hook-Flash).Conference ID[ConferenceID]Defines the Conference Identification string (up to 16 characters). The gatewayuses this identifier in the Conference-initiating INVITE that is sent to the mediaserver when Enable3WayConferenceis set to 1.The default value is conf.For example: ConferenceID = MyConference.Metering TonesFXS gateways can generate 12/16 KHz metering pulses towards the Tel side (for example,for connection to a payphone or private meter). Tariff pulse rate is determined according toan internal table. This capability enables users to define different tariffs according to theSource / Destination numbers and the Time-of-Day. The tariff rate includes the time intervalbetween the generated pulses and the number of pulses generated on answer.
