Grandstream GXP2200 User Manual - Manual (Page 129)

Firmware Version 1.0.3.26 GXP2200 USER MANUAL Page 128 of 159
the selected ring.
Upload Local MOH Audio File
Click on "Browse" button to upload the music file from local PC. The
MOH audio file has to be in .wav or .mp3 format.
Note:
Please be patient while the audio file is being uploaded. It could take
more than 3 minutes to finish the uploading especially the file size is
large. The button will show as "Processing" during the uploading. Once
done, it will show as "Browse" again. Click on "Save" on the bottom of
the web page and "Apply" on the top of the web page to save the
change.
Enable Local MOH
If set to "Yes", local MOH will be turned on. Users will need upload a
local MOH audio file so it can be played on the other party when the user
puts the other party on hold. The default setting is "No".
ADVANCED SETTINGS PAGE DEFINATIONS
ADVANCED SETTINGS/GENERAL SETTINGS
Local RTP Port
Defines the local RTP-RTCP port pair used to listen and transmit. It is
the base RTP port for channel 0. When configured, for audio, channel 0
will use this port_value for RTP and the port_value+1 for its RTCP;
channel 1 will use port_value+4 for RTP and port_value+5 for its RTCP.
For video, channel 0 will use port_value+2 for RTP and port_value+3 for
its RTCP; channel 1 will use port_value+6 for RTP and port_value+7 for
RTCP. The default value is 5004.
Use Random Port
When set to "Yes", this parameter will force random generation of both
the local SIP and RTP ports. This is usually necessary when multiple
phones are behind the same full cone NAT. The default setting is "Yes"
(This parameter must be set to "No" for Direct IP Calling to work).
Disable in-call DTMF display
When it's set to "Yes", the DTMF digits entered during the call will not
display. The default setting is "No".
Keep-alive Interval (s)
Specifies how often the phone sends a blank UDP packet to the SIP
server in order to keep the "ping hole" on the NAT router to open. The
default setting is 20 seconds.
STUN Server
The IP address or Domain name of the STUN server. STUN resolution
results are displayed in the STATUS page of the Web GUI. Only
non-symmetric NAT routers work with STUN.