B. DTMF Methods
Under Profile pages, there are three DTMF modes to choose from:
yDTMF
yDTMF via RTP (RFC2833)
yDTMF via SIP INFO
One or more DTMF methods can be selected at the same time.
C. Preferred VOCODER (Codec)
Under Profile pages, user can choose from the following different codecs:
PCMU (G711u), PCMA (G711a), G729A/B/E, G723,
D. Firmware Upgrade
Under Advanced Settings page, enter “Firmware Server Path” (IP address or FQDN) under “Firmware Upgrade and Provisioning” field. Select upgrade protocol TFTP, HTTP or HTTPS accordingly. By default, “Always Check for New Firmware at Boot up” is selected.
E. Factory Reset
Below are the steps to reset the unit to factory default via the reset button.
1.Unplug the Ethernet cable.
2.Locate a needle sized hole on the back panel of the gateway unit next to the Power connection.
3.Enter a pin in this hole, and press for about 10 seconds till LED changes and a minor click sound.
4.Take out the pin. All configuration settings are restored to factory settings.
Grandstream Networks, Inc. Corporate Headquarters
www.grandstream.com
info@grandstream.com
1297 Beacon Street, 2nd Floor,
Brookline, MA USA 02446
Tel : +1 (617) 566 – 9300
Fax: +1 (617) 247 – 1987
Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: (617)
www.grandstream.com Last updated on April 1, 2008
6
