Pulse Metering

I have a question about the Metering Pulse Burst signal defined in
H.248.26 (01/2005). This signal has two parameters: Burst Pulse Count &
Pulse Repetion Interval. The Burst Pulse Count parameter specifies the
number of metering pulses to be applied as a burst on the line. The
description of this parameter says that "The type, duration and pulse
repetition interval for the metering pulses comprising the burst are
provisioned in the MG".

Considering that the pulse repetition interval is provisioned in the MG,
I don't understand the reason why this signal has a "Pulse Repetition
Interval" parameter. Furthermore the default value for the "Pulse
Repetition Interval" parameter is "1" rather than "provisioned".

Can someone shade some light on this?

Thanks
Bruno

6.3.2.1.1 Burst Pulse Count
Parameter name: Burst Pulse Count
Parameter ID: bpc (0x0001)
Description: This parameter specifies the number of metering pulses to
be applied as a burst
on the line. The type, duration and pulse repetition interval for the
metering
pulses comprising the burst are provisioned in the MG.
Type: Integer
Optional: Yes
Possible values: 1 or more pulses
Default: 1
6.3.2.1.2 Pulse Repetition Interval
Parameter name: Pulse Repetition Interval
Parameter ID: pri (0x0002)
Description: Interval from the leading edge of a metering pulse to the
leading edge of the
next metering pulse.
Type: Integer
Optional: Yes
Possible values: 1 or more milliseconds
Default: 1

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