Http://www.hybertone.com HT-342 Two FXO Gateway
16
A
)
RAS Port
RAS Port is connected to an unreliable channel, which is used to convey the
registration, admissions, bandwidth change, and status messages between two H.323
entities.
B
)
Q.931 Port
(
Call Signaling Port
)
Call Signaling Port is connected to a reliable channel used to convey the call setup
and release messages between two H.323 endpoints.
C
)
H.245 Port
(
Media Control Ports
)
Media control port is the port or port range used by the H.245 media control protocol
.
D
)
Fast Start
Enable or disable the Fast Start in H.225.0. Only few H.323 terminals or gateways do
not support Fast start.
E
)
Register Mode
Register Multiple Numbers: The HT-342 send 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 HT-342 will register like two terminals.
F
)
DTMF Signaling
1
)
DTMF TYPE
DTMF TYPE is used for telephone signaling over the line in the voice frequency band
to the call switching center. DTMF means that two groups of tone with different
frequencies are united into 16 kinds of dial tone. The telecommunication station,
switch or the phone service such as 1860 identify these special tones through DSP
analysis to confirm the keys dialed by user. There are two DTMF types: Inband DTMF
type and Outband DTMF type.