ZP502 User Manual
37
Fifth Codec
The fifth preferential DSP codec: G.711A/u, G.722, G.723, G.729
Input Volume
Specify Input (MIC) Volume grade.
;
Hands-free Volume
Specify Hands-free Volume grade
G729 Payload Length
Set G729 Payload Length
Handdown Time
Specify the least reflection time of Handdown, the default is
200ms.
Ring Type
Select Ring Type
Output Volume
Specify Output (receiver) Volume grade.
Ring Volume
Specify Ring Volume grade
G722 Timestamps
160/20ms or 320/20ms is available
G723 Bit Rate
5.3kb/s or 6.3kb/s is available
Default Ring Type
Set up the ring by default
Signal Standard
Select Signal Standard.
VAD
Select it or not to enable or disable VAD. If enable VAD, G729
Payload length could not be set over 20ms.
4.3.4.2. Call Service
In this web page, you can configure Hotline, Call Transfer, Call Waiting, 3 Ways Call, Black List,
white list Limit List and so on.
Call Service
Field name
explanation
Hotline
Specify Hotline number. If you set the number, you can not dial any other
numbers.
No Answer
Time
Specify No Answer Time
Set Prefix in peer to peer IP call. For example: what you want to dial is