User`s guide

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General SIP Settings allows you setup the code priority, ports frame size, signaling and voice
precedence.
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This function allows you to set Codec priority and Codec types in SDP. This VoIP phone has enabled
four Codec as following: G.711 u-law/G.711 a-law, G.723.1, G.729, G.722. There are four priority
levels can be set in different order, “First Priority”, “Second Priority”, “Third Priority”, and “Fourth
Priority” or “Disable”.
NOTE:
a. Due to the codec limitation, only G.723/G.729 codec can be available when G.722 codec is not
selected. Please reboot the VoIP Phone after making changes in Codec Priority.
b. When disable all the codec priority, the SDP will automatically use G.711 codec as the default
codec.
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This function allows you to set the port number of user-agent where it receives SIP messages. The
default value is 5060.
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This parameter defines the local RTP-RTCP port base use to listen and transmit. The default value is
10000.
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This parameter defines RFC2833. The default value is 101.