Lucent Technologies 7820-0802-003 Configuring overlap receiving on PRI lines, Parameter Specifies

Configuring T1 Cards

Configuring overlap receiving on PRI lines

trailing-digits = 2 t302-timer = 10000

[in E1/{ shelf-1 slot-12 1 }:line-interface] signaling-mode = isdn

overlap-receiving = yes pri-prefix-number = 3069 trailing-digits = 2 t302-timer = 10000

To configure overlap receiving, you need to set some or all of the following parameters:

Parameter	Specifies
Signaling-Mode	Type of signaling on the T1 or E1 line. It must specify ISDN (or
	ISDN-NFAS, for T1) to use overlap receiving. If it is set to any other
	value, Overlap-Receiving does not apply.
Overlap-Receiving	Enables/disables overlap receiving for incoming calls on the PRI line.
	If set to No (the default), the PRI-Prefix-Number, Trailing-Digits, and
	T302-Time parameters do not apply for overlap receiving.
PRI-Prefix-Number	Portion of the line’s telephone number to be used when matching the
	called-party number in the Setup message from the network switch.
	The reason for specifying this number is to enable the TAOS unit to
	quickly determine when the called-party number is complete when
	overlap receiving is in use. The unit uses this number and the specified
	number of trailing digits to recognize that the called-party number is
	complete, even if the caller did not include a Sending Complete code
	(for example, by dialing the pound sign).
	Typically, the PRI prefix is an ISDN-subscriber number, that might
	include an area code or an area and country code combination (which
	must be separated from the ISDN-subscriber number by a hyphen).
	With this additional information, the TAOS unit looks for just the first
	match of PRI-Prefix-Number against the called-party number in the
	Setup message (first with area code, and if that fails, then without area
	code).
	The default null value disables the T302-Timer optimization.
Trailing-Digits	Number of digits required to follow the prefix number for the
	TAOS unit to consider the called number complete. Callers can
	indicate Sending Complete by a method such as dialing the pound sign
	(#). If a caller does not indicate Sending Complete and the TAOS unit
	cannot determine whether the called number is complete, the
	TAOS unit waits until the T302 timer expires even if the caller has
	dialed all the required digits.
	The Trailing-Digits setting enables the TAOS unit to reset the timer
	when the specified number of digits has been received. Trailing-Digits
	can specify a value from 1 to 6. The default value is 2.

7-10 APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide