User manual

Http://www.hybertone.com HT-822P VoIP FXS+PSTN Gateway

Call Signaling Port is connected to a reliable channel used to convey the call setup and

teardown 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. Note:

the H.245 media control protocol uses TCP.

D） Fast Start

Enable or disable the Fast Start procedure described in H.225.0. This option is mainly

used for testing and solving compatibility problems. If not sure, let this option unselected.

E） Register Mode

A: Register Multiple Numbers

In this register mode, devices will send all account’s register request in one

signaling when then use same one GK.

B: Register Multiple Times

In this register mode, devices will send the register request one by one.

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.

Inband DTMF type transfers these special dial tones together with the speech tone

without doing any special processing to them. So there is not any type as to Inband

DTMF.

Outband DTMF type transfers these special dial tones by some special method to

confirm its correctness. The special method is the so called protocol such as

RFC2833 and SIP information.

2）DTMF Payload Type