Abbreviated number from 0 to 99 The stored-number-type is a sip: or tel: URI. Each tel: URI and sip: URI that was converted from a tel: URI according to section 19.1.6 of RFC 3261 contains a normalized number, or a number that can be normalized after removing a dynamic ad-hoc presentation supplementary service code and/or a carrier select code. AoCI is advisory only PIN code - either 4-6 digits or an MD5 hash of the PIN code (32 characters) This corresponds to 3GPP TS 24.229: cpc-value = "ordinary" / "test" / "operator" / "payphone" / "unknown" / "mobile-hplmn" / "mobile-vplmn" / genvalue genvalue = 1*(alphanum / "-" / "." ) Announcement identity range The allowed characters in an announcement name are restricted to a-z, A-Z, _ and 0-9. The allowed characters in a variable name are restricted to a-z, A-Z, _ and 0-9. The allowed characters in a variable value are restricted to ASCII 0x09, 0x20-0x7e and ASCII. Defines the PIN length. Valid range is 4-10 digits Pin code attempts Confirming to P-Access-Network-Info header ABNF syntax described in 3GPP TS 24.229: IP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (Release 11) section 7.2A.4.