Four Channel’s GSM VoIP Gateway
20
Register Multiple Numbers: The GoIP400 Gateway sends registration request in one
signaling packet to the gatekeeper. In the mode, one
signaling packet includes two VoIP line’s
registration information.
Register Multiple Times: In this mode, the GoIP400 Gateway will register like
two terminals.
F) QOS Signaling
QOS
is network quality of service and ability of higher priority service that network
supports, including dedicated broadband
、
control and delay jitter
、
packet loss rate
improvement and so on. This option can label for QOS which is designated by call
signaling packets, in order to improve the network quality of service.
G
)
DTMF Signaling
1
)
DTMF TYPE
DTMF signals can be sent over to the called party once a call is established.
GoIP400 Gateway supports both
Inband
and
Outband
DTMF signal types.
For
Inband
DTMF type, DTMF signals are generated locally at the calling phone
and then send to the called party as part of the voice signals. This method is not
reliable since the quality of the DTMF signals is subject to the Codec used and the
quality of the network traffics.
For
Outband
DTMF type, DTMF signal commands are sent to the called party and
the actual DTMF signals are actually generated by the called party. This method
allows more reliable DTMF signaling. However, it requires the called party to support
this feature in order for this to work properly. GoIP400 Gateway supports
RFC2833
Outband DTMF protocols.
2
)
DTMF Payload Type
DTMF Payload Type is by RFC2833 protocol to carry the tone definitions for
various applications. The default DTMF Payload Type is 96. Please consult your VoIP
service provider for the proper setting if required.
.
3.4.2 SIP Phone
Set the “
Endpoint Type
” to SIP Phone for connections to SIP Servers.