Application Guide

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GAC2500 Administration Guide
Version 1.0.3.20
Advanced Settings Page Definitions
Advanced Settings page lists General Settings, Call Features, Tone Generator, Multicast Paging, MPK
General Settings and MPK LCD Settings.
Advanced Settings - General Settings
Advanced page lists General Settings, Call feature, Tone settings and call features.
Table 28: Advanced - General Settings
Local RTP Port
Defines the local RTP-RTCP port pair used to listen and transmit.
If it is configured with X, in channel 0 the port X will be used for audio
RTP message, the port X+1 for audio RTCP message, the port X+2 for
video RTP message and the port X+3 for video RTCP. In Channel 1,
each port number will be incremented by 4 for each message. This
increment rule will apply to other channels and other port numbers.
By default, the Account 1 will use Channel 0, Account 2 Channel 1,
Account 3 Channel 2, Account 4 Channel 3, and Account 5 Channel 4
and Account 6 Channel 5.
If an account needs to establish multiple session simultaneously, the
system will use the ports in the next available channels.
The default value is 5004. The valid range is from 1024 to 65400.
Use Random Port
Forces the phone system to use random ports for both SIP and RTP
messages. This is usually necessary when multiple phones are behind
the same full cone NAT. The default setting is “No”.
Note: This parameter must be set to “Nofor Direct IP Calling to work.
Disable in-call DTMF display
Enables/disables the phone system to omit the LDAP contacts will from
LCD screen. If it is enabled, end user is not allowed to use it in the
Contact app. The default setting is “No”.
Enable Enterprise Contacts
Timeout Auto Search
Configures whether to display the matched content automatically in
search of the LDAP Contacts when timeout. If set to "No", users need to
click the Search button to search the matched contacts mentioned above.
The default is "Yes".
Hide LDAP Contacts
Enables/disables the phone system to omit the LDAP contacts will from
LCD screen. If it is enabled, end user is not allowed to use it in the
Contact app. The default setting is “No”.
Keep-alive Interval (s)
Specifies how the phone system will send a Binding Request packet to
the SIP server in order to keep the “ping hole” on the NAT router to open.
The default setting is 20 seconds. The valid range is from 10 to 160.