Technical data

Table Of Contents
72
Chapter 5: Configuration
iAN-02EX
Part Number UTSI-NJTC-200323150117
Administrator Manual
June 2005
Figure 48
VoIP - Audio Config
Configure the parameters accordingly. Click
OK
to confirm the modification or
click
Cancel
to discard the modification.
Table 35
VoIP - Audio Config Field Description
Item Description
Port Index Port 1 / Port 2
Codec Rate The period (in milliseconds) that the VoIP Gateway sends voice
packets to call party. This value must be a multiple of 10.
Default: 20
Preferred Codec The preferred method of voice compression on per port basis.
Default: G.729A
VAD (Voice Activity
Detection)
Enable: sending packets only while the user is speaking. This will
save the bandwidth but cause time delay.
Disable: sending packets no matter the user is speaking or not.
This will improve the voice quality to be more smoothly but
increase more traffic load.
Default: Enable
DTMF Tx Method
RFC-2833 Enable/disable RFC-2833 on per port basis. If both RFC-2833 and
SIP-INFO are disabled, ATA takes DTMF pass through.
Default: Enable
SIP INFO Enable/disable SIP info on per port basis. If both RFC-2833 and
SIP-INFO are disabled, ATA takes DTMF pass through.
Default: Disable