User Guide

29
R26B
Admin Guide
Missed Call Log: If enabled, any missed call will be recorded into
call log.
Prevent Hacking: If enabled, it will prevent SIP messages from
hacking.
4.2.4. Codec
Go to Account - Advanced to configure SIP call related codec.
SIP Account: To choose which account to configure.
Audio Codec:R26B support four audio codec: PCMA, PCMU,
G729, G722. Different audio codec requires different bandwidth,
users can enable/disable them according to different network
environment.
Note: Bandwidth consumption and sample rates are as below:
Codec
Bandwidth
Sample Rates
PCMA
64kbit/s
8kHz
PCMU
64kbit/s
8kHz
Figure 4.2.4-1 Codec