The number of PDP contexts that the activation request
was rejected.
Trigger Condition: This counter is updated when a PDP
activation request is rejected.
The cause for rejection can be
a) Resource limitations like max PDP limit is reached,
Out of memory.
b) Config restrictions like trying to create NIPDP on an
APN on which the same is disabled,
c) Creating secondary contexts on PPP/PPP-Regen PDPs.