Maintenance Page Definitions; Table 13: Maintenance Page Definitions - Grandstream Networks DP750 Administration Manual

Ring Tones
System Ring Sets ring cadences for all incoming calls.
Cadence Syntax: c=on1/off1-on2/off2-on3/off3;)
on1 is the period of ringing ("On time" in "ms") while off1 is the period of silence.
Default is set to c=2000/4000; (US standards).Up to three cadences are supported.
Call Progress Configures tone frequencies according to user preference. By default, the tones are
set to North American frequencies. Frequencies should be configured with known
Tones
values to avoid uncomfortable high pitch sounds. ON is the period of ringing ("On
time" in "ms") while OFF is the period of silence. In order to set a continuous ring,
OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and then
repeats the pattern.
Please refer to the document below to determine your local call progress tones:
http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf
System Features
Disable Direct IP Deactivates Direct IP-to-IP calling function. Default is No.
Call
User-Agent Prefix This option allows to configure a customized User-Agent Prefix.

Maintenance Page Definitions

Firmware Upgrade
Firmware Upgrade Selects how firmware upgrade request will be sent: "Always Check for New
and Provisioning Firmware", "Check New Firmware only when F/W pre/suffix changes", or "Always
Skip the Firmware Check".
HTTP/HTTPS User
Enters user name to authenticate with HTTP/HTTPS server.
Name
HTTP/HTTPS
Enters password to authenticate with HTTP/HTTPS server.
Password
• "Dial tone"
• "Ring back tone"
• "Busy tone"
• "Call-Waiting tone"

Table 13: Maintenance Page Definitions

DP750/DP720 Administration Guide
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