GprsLocationSgsnNumber defines the value of sgsn-Number parameter in MAP UpdateGprsLocationArg when UpdateLocation is set and UpdateGprsLocation operation is used for authorisation. The value is an ISDN-AddressString and configured as a phone number. All non-digits are removed before the value is used. Defaults to OurGlobalTitle.

# ISDN-AddressString of SGSN Radiator acts as
GprsLocationSgsnNumber +353 020 912 1234