This object determines the sequence in which information will be gathered by the incoming register. Only a set of predefined characters can be used in the octet string notation of the sequence. The special character and the alphabet strings allowed are listed below: '/' - Separator between different elements of information that should be collected. - Indicates how many digits of the following information element should be collected before switching to collecting the next information element. Number always precedes one of the information elements such as D or A. If no number is specified, all of the digits for that information element are collected before fetching digits for next info element. di - DNIS/Destination number/dialed number/called number. si - ANIS/Source number/calling number. sc - Subscriber Category. cc - Country Code. es - Echo Suppression Information. noc - Nature of Circuit. disc - Discriminator Digit. The default value is country specific.