48
and play the dial tone for 2 stage dialing to VOIP.
Playback voice file:
To enable playing voice greeting file or not.
Repeat Count:
Repeat how many counts to play voice greeting file.
(Used for FXO port with 2-Stage Dialing Only )
Voice file name (MuLaw-mono 8K):
Specify the file path and file
name to upload. Please make sure that the file format needs to be
G.711U, 8K, 8 bits raw file. (Used for FXO port Only)
Flash Time:
Flash Time will be send to PSTN line (internal use only)
FAX Relay:
Enable T.38 Fax Relay or not
Input(Encode)Gain:
Adjust the volume from PSTN to VOIP (default
is 0 db)
Output(Decode)Gain:
Adjust the volume from VOIP to PSTN (default
is 0 db)
Dialing Answer Delay Time (sec):
When the polarity reversal
detection is disabled, Welltech 2540 will answer the call after this time
out without answer supervision. After the DTMF dialing, Welltech 2540
will send 183 with SDP to enable the voice path for VOIP side.
PSTN Answer Ring Count:
This ring count is used for called ID
detection and 2 stage dialing.
If the caller ID is sending during the first ring and second
ring, this parameter should be set to greater or equal to
If the caller ID is sending before the first ring, this
parameter can be set to greater or equal to 1.
After the ring count was reached, Welltech 2540 will answer the
call if 2 stage dialing is selected or make the VOIP call out if hot
line is selected.
CallerID Standard:
The detected Caller ID stand for the line.