Synway Information Engineering Co., Ltd
SMG Series Analog Gateway User Manual (Version 1.5.3)
Page 2
1.2 Feature List
Basic Features
Description
TDM Call
Call initiated from TDM to IP, via routing and number manipulation to obtain the
called IP address.
IP Call
Call initiated from IP to TDM, via routing and number manipulation to obtain the call
destination.
Number Manipulation
Peels off some digits of a phone number from left/right, or adds a prefix/suffix to a
phone number.
Call Forward
Three options available: Unconditional, Busy and No Reply.
Call Waiting
When an FXS channel receives another call while it is in conversation, it will have
the newly received call keep waiting. Once the current call is finished, the new one
will ring the FXS channel and wait for its answer.
Auto Dial
If there is no dialing operation in a designated time period after pickup, the preset
auto dial number will be called.
Do Not Disturb
Rejects all the incoming calls to the channel.
CID
Displays the CallerID.
Echo Cancellation
Provides the echo cancellation feature for a call conversation over the FXS/FXO
channel.
TDM/VoIP Routing
Sets a routing path: from IP to TDM or from TDM to IP.
Fax
Provides multiple fax parameters: fax mode, maximum fax rate, fax train mode,
error correction mode, etc.
Communication
without Power
Provides composite modules to enable a direct connection of the station which is
linked with the FXS port and the trunk which is linked with the FXO port to keep the
calls between the FXS port and PSTN uninterrupted during power outage.
Communication
without Network
Automatically routes a call to the FXO port in case of network failure or call timeout.
Send Polarity Reversal
Signal
Sends the polarity reversal signal to a corresponding FXS channel when the called
party pick-up behavior is detected.
Detect Polarity
Reversal Signal
Turns a corresponding channel into the talking state when the FXO port detects the
polarity reversal signal.
Simultaneous Register
to Multiple Servers
Registers the gateway to a master registrar server and a spare registrar server
simultaneously.
IMS Network
Registers the gateway to a server under IMS network.
SIP Station
Supports a SIP terminal to be registered to the gateway and become a SIP station.
Group Ringing
Rings all the idle FXS ports in a port group.
Ringing by Turns
Rings the FXS ports in a port group by turns according to the
Rule for Ringing by
Turns
.
Preemptive Answer
When a channel in a port group is ringing, another channel in the same port group
can press the preemptive answer keyboard shortcut to transfer the call from the
