Also see the G-CDR and Enhanced G-CDR Field Reference Tables chapter for information on CDR fields supported in G-CDRs and eG-CDRs.
The presence of this field indicates that the Served PDP Address was dynamically assigned during context activation.
Important: When encoding the Service Change Condition bit string, the following rule is applied:“In a primitive encoding, the first contents octet gives the number of bits by which the length of the bit string is less than the next multiple of eight (this is called the ‘number of unused bits’). The second and following contents octets give the value of the bit string, converted to an octet string." [As stated in A Layman's Guide to a Subset of ASN.1, BER, and DER - Burton S. Kaliski section 5.4] For example, serviceConditionChange is set to "88 0403 0400 00" to continue the ongoing session case. "03" represents the number of unused bits according to ASN.1 encoding which indicates that the octet following the length octet actually gives the number of unused bits.