This object when set to 'true' enable the GGSN to provide
the MSISDN number from the create PDP context request
in the G-CDRs.
This field contains the Mobile Station (MS) ISDN number
(MSISDN) of the served party. The term 'served' party is
used to describe the mobile subscriber involved in the
transaction recorded.
If the object is set to 'false', Disable the GGSN to provide
MSISDN number in the G-CDRs.