User`s manual

DVG-7022S/7044S/7062 User’s Manual Telephony Settings
y FXS Group: Select group hunting when there is an incoming call and the gateway will automatically assign
an unassigned call according to the Hunting Priority. If Line 2 does not want to be set as an assigned line to
receive any inbound calls, the function can be disabled. Users can also use the Up or Down key to adjust
hunting priority (No setting is required for the FXO interface).
y FAX/Modem: Enable this line to detect if there is a fax tone and transfer the call to a fax line.
Function Fax Detection Content of SDP of re-INVITE Receive re-INVITE with T.38
Disable No N/A Accept and change RTP to T.38
T.38 Fax Yes re-INVITE with T.38 and T.30 Accept and change RTP to T.38
T.30 Fax Yes re-INVITE with T.30 Accept and change RTP to T.38
T.30
Fax/Modem
Detect CED
only
re-INVITE with T.30 Accept and change RTP to T.38
T.30 Only No
N/A(All the calls use T.30
codec of RTP stream, not
need to change codec.)
Accept and change RTP to T.38
T.38 Native Yes re-INVITE with T.38 Accept and change RTP to T.38
NOTE: When a fax tone is detected from the call, the gateway will automatically switch from voice
mode to fax mode. Hence, the fax settings will be temporarily applied to a specific port which
detects the fax tones, instead of its default voice settings.
D-Link Systems, Inc. 23