Blackberry max bytes for IPPP connection

Question

I'm trying to determine the max number of KB allowed for an IPPP connection through a BES a BlackBerry is connected to.

In a develoment environment, I can check this via the 'IPPP.connection.MaxNumberOfKBytesToSend' variable inside the 'rimpublic.property' file.

Does anyone know how to detect this on a device running in the field?

Thanks,

Dan