User's Manual

TriplePlay

User Manual

Version 1.0

Document #: BD-TU0001-10

• Packetisation Time— (in microseconds) this is how often a

packet should be sent. This can increase or decrease the

time duration between each packet sent.

z VAD State— Voice Activity Detection—enabling will control

voice information to be sent based on voice activity, which

can reduce voice traffic

z ECAN State— Echo Canceller— enabling this feature will

cancel out any echo in the call

• DTMF Relay State— select between voice band and RFC

2833. RFC 2833 describes how to carry out DTMF

signaling, other tone signals, and telephony events in RTP

packets.

• Fax Mode— select between none or voice band data. Voice

band data is data being passed as audio using an audio

codec. Voice and voice band data have different trade-

offs—voice requires low delay, but voice band data requires

low packet loss.

• SIP Re-register Timer— (in microseconds)—the amount of

time before registration is required again

z Session Expire Timer— (in microseconds)—when a call

session will end

• Signaling / Voice TOS— type of service for signaling and

voice. A signaling transmission is used for building a voice

connection. Voice TOS is used for voice transmission.

Each call has two parts—first part involves the signaling

transmission when a call is made or received. The second

part is when the call is connected, it transfers voice in voice

transmission.

• Inter / Critical Digit Timer— inter-digit timer (IDT) is used as

timeout check between each digit dialed, while the critical

digit timer (CDT) is used for "almost completed" dialing to

wait for more digits. Essentially, CDT is the time that the

device waits after the digits are dialed before it dials the

numbers.