Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones328Note: It works only if the Music on Hold feature is disabled and“features.play_held_tone.enable” is set to 1 (Enabled).PermittedValues Integer from 3 to 3600Default 30Web UI Features->General Information->Play Held Tone DelayParameter features.play_held_tone.interval .cfgDescriptionIt configures the time (in seconds) between subsequent call held tones.If it is set to 3 (3s) and “features.play_held_tone.delay” is set to 30 (30s), the IP phonewill begin to play a held tone after a call is held by the other party for 30 seconds, andrepeat the call held tone every 3 seconds.Note: It works only if the Music on Hold feature is disabled and“features.play_held_tone.enable” is set to 1 (Enabled).PermittedValues Integer from 3 to 3600Default 60Web UI Features->General Information->Held Tone Interval(second)Parameter phone_setting.hold_or_swap.mode .cfgDescriptionIt configures the display rule of the Hold/Swap soft key when there are two calls onthe phone.Note: You can also configure the softkey layout feature to display the Hold or Swapsoft key.PermittedValues0-Only display the Hold soft key.1-Only display the Swap soft key.2-Display the Hold and Swap soft keys.Default 0[1]X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; forT41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2.Music on Hold (MoH) ConfigurationWhen a call is placed on hold, the IP phone will send an INVITE message to the specified MoH serveraccount according to the SIP URI. The MoH server account automatically responds to the INVITE messageand immediately plays audio from some source located anywhere (LAN, Internet) to the held party. Formore information, refer to draft RFC draft-worley-service-example.The following table lists the parameters you can use to configure music on hold.
