AudioCodes Mediant 2000 User Manual page 277

SIP User's Manual
Parameter
Web: Enable Digit Delivery to
Tel
[EnableDigitDelivery]
Retransmission Parameters
Web: SIP T1 Retransmission
Timer [msec]
EMS: T1 RTX
[SipT1Rtx]
Web: SIP T2 Retransmission
Timer [msec]
EMS: T2 RTX
[SipT2Rtx]
Web: SIP Maximum RTX
EMS: Max RTX
[SIPMaxRtx]
Version 5.8
Enables the Digit Delivery feature, which sends DTMF digits of the
called number to the device's
answered (i.e., line is off-hooked for FXS, or seized for FXO) for IP-
to-Tel calls.

[0] Disable = Disabled (default).

[1] Enable = Enable Digit Delivery feature for the device (two-
stage dialing).
If the called number in IP-to-Tel call includes the characters 'w' or 'p',
the device places a call with the first part of the called number
(before 'w' or 'p') , and plays DTMF digits after the call is answered. If
the character 'w' is used, the device waits for detection of dial tone
before it starts playing DTMF digits. For example, if the called
number is '1007766p100', the device places a call with 1007766 as
the destination number, then after the call is answered, it waits 1.5
seconds ('p') and plays the rest of the number (100) as DTMF digits.
Additional examples: 1664wpp102, 66644ppp503, and
7774w100pp200.
Note:For this parameter to take effect, a device reset is required.
The time interval (in msec) between the first transmission of a SIP
message and the first retransmission of the same message.
The default is 500.
Note: The time interval between subsequent retransmissions of the
same SIP message starts with SipT1Rtx and is multiplied by two
until SipT2Rtx. For example (assuming that SipT1Rtx = 500 and
SipT2Rtx = 4000):

The first retransmission is sent after 500 msec.

The second retransmission is sent after 1000 (2*500) msec.

The third retransmission is sent after 2000 (2*1000) msec.

The fourth retransmission and subsequent retransmissions until
SIPMaxRtx are sent after 4000 (2*2000) msec.
The maximum interval (in msec) between retransmissions of SIP
messages.
The default is 4000.
Note: The time interval between subsequent retransmissions of the
same SIP message starts with SipT1Rtx and is multiplied by two
until SipT2Rtx.
Maximum number of UDP transmissions (first transmission plus
retransmissions) of SIP messages.
The range is 1 to 30. The default value is 7.
277
6. Configuration Parameters Reference
Description
B-channel (phone line) after the call is
October 2009