Operation Manual

2.8.3 Audio
Volume Control
Internal microphone input gain: Select the gain of the external audio input from the drop-down list (Level 1,
Level 2, and Level 3) according to ambient conditions.
Internal speaker output gain: Select the gain of the external audio output from the drop-down list (Level 1,
Level 2, and Level 3) according to ambient conditions.
Audio type:
• G.711 provides pcma (a-law), pcmu (u-Law) mode for RTSP and SIP.
• G.722 and G.729a, provides for SIP audio.
When completed with the settings on this page, click Save to enable the settings.
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