User Manual

User Manual
119
SIP Transport Protocol: Select the transport protocol to use for SIP
signaling. Note that the SIP proxy and registrar need to support the protocol
you select.
Enable Local Supplementary Service: Select the checkbox to enable the
supplementary service settings by the telephone set. If you deselect the
checkbox, the supplementary service can not be set by the telephone set.
After setting, click Apply to take the settings in to effect.
5.4.4 SIP Extra Setting
Choose Voice > SIP Extra Setting, and the following page appears.
Dial tone time: Dial tone duration.
Busy tone time: Busy tone duration.
Inter digit time: The valid range is 1 ~ 5.
Offhook warning tone time: Offhook warning tone duration.
Ringback tone time: Ringback tone duration.
After setting, click Apply to take the settings in to effect.
5.4.5 SIP Debug Setting
Choose Voice > SIP Debug Setting, and the following page appears.