http://www.hybertone.com COIP CDMA Voice Gateway
29
H.323 unites. The RAS port can be used to specify the UDP and used with the router port for
mapping.
B. Call Signaling Port (Q.931 Port)
H.225-Q.931 is a call control protocol of the H.323 for transmitting the call setting and
unloading information between two H.323 units. It is used to specify the Q.931 port (TCP)
that receives calls and used with the router port for mapping.
C. Media Control Port (H.245 Port)
H.245 is the media control protocol of the H.323. It is used to specify the port that receives
the H.245 connection (TCP) and used with the router port for mapping.
D. Fast Start
You can enable or disable the fast start described in the H255.0 protocol. This parameter is
used to detect and solve the compatibility problem. If you are not sure, do not set this
parameter.
E. Fast Start Extension
This parameter is set for the special requirement of some customers. If you are not sure, do
not set this parameter.
F. H245 Tunnel
This parameter is set for the special requirements of some customers. If you are not sure, do
not set this parameter.
G. Registration Mode
This parameter is used to comply with different PBXs and is not set normally.
H. DTMF Signals
DTMF signals are used to transmit call signals to the call switching center over the audio band.
The DTMF means that two different frequencies of sounds are combined to 16 types of
dialing tones.
The telecom office or 1860 service hotline identify these dialing tones by
analyzing the DSP, and thus determining the dialing number. There are two types of DTMFs:
inband DTMF and outband DTMF.