Avamprogetto 2a

Technical requirements for the handover interfaces for the execution of telecommunications surveillance

 Option c.: The octets 19 (TMR), 20 (USI), and 21 (UTI) of the Calling Party Subaddress are set to “FF” (hex).

The IIF shall meet the requirements specified in the following table:

ISUP parameters according to ITU-T Q.699 (09/97) Parameters according to ETSI TS 101 671 V3.12.1 Table E.3.5 Calling Called ISUP ISUP ISUP Service Service Service Transmission User Service User Parameter Parameter Parameter Medium Information Teleservice octet 19 octet 20 octet 21 Requirement octet 1 Information (value “TMR”) (value “BC” (value “HLC” ITU-T Q.763 ITU-T Q.763 octet 2 octet 3) octet 4) (12/99) § 3.54 (12/99) ITU-T Q.763 § 3.57 (12/99) (coding see § 3.59 ITU-T Q.931 (coding see (05/98) ITU-T Q.931 § 4.5.5 octet 3) (05/98) § 4.5.17 octet 4)

Target Third speech speech not present or speech or “FF” speech “FF” hex or ISDN any telephony hex (NOTE 1) telephony

(NOTE 2)

64 kbit/s unrestricted not present or UDI or “FF” unrestricted “FF” hex or unrestricted digital value matching hex (Note 1) digital value matching information BC information BC (NOTE 2) 3.1 kHz audio 3.1 kHz audio not present or 3.1 kHz audio 3.1 kHz audio “FF” hex or value matching or “FF” hex value matching BC (NOTE 1) BC (NOTE 2) Target Third 3.1 kHz audio not present not present 3.1 kHz audio “FF” hex “FF” hex analog any

Third Target speech speech not present or speech or “FF” speech “FF” hex or ISDN ISDN telephony hex (NOTE 1) telephony

(NOTE 2)

64 kbit/s unrestricted not present or UDI or “FF” unrestricted “FF” hex or unrestricted digital value matching hex (NOTE 1) digital value matching information BC information BC (NOTE 2) 3.1 kHz audio 3.1 kHz audio not present or 3.1 kHz audio 3.1 kHz audio “FF” hex or value matching or “FF” hex value matching BC (NOTE 1) BC (NOTE 2) Third Target speech speech not present or OPTION a.: OPTION a.: OPTION a.:

ISDN analog telephony speech or “FF” speech “FF” hex or

hex (NOTE 1) telephony (NOTE 2)

OPTION b.: OPTION b.: OPTION b.: speech “FF” hex “FF” hex OPTION c.: OPTION c.: OPTION c.:

“FF” hex “FF” hex “FF” hex 64 kbit/s unrestricted not present or No communication between third party and Target unrestricted digital value matching takes place with this service profile, since the user information BC destination “analog” is incompatible to the service profile of the offered call. No CC-links are established using this profile, but IRI is sent.