International Testing Services:

AST Technology Labs supports the testing of international telephony standards including but not limited to ETSI, South Africa, China, and Mexico. If you do not see your specific standard listed below please contact us.

• ETSI
  • TBR38, Attachment requirements for a terminal equipment incorporating an analogue handset function to the analogue interface of the PSTN in Europe
  • ES 203 038, Speech and multimedia Transmission Quality (STQ);Requirements and tests methods for terminal equipment incorporating a handset when connected to the analogue interface of the PSTN
  • TBR21, Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTN) of TE in which network addressing by means of Dual Tone Multi Frequency (DTMF) signalling
  • ES 203 021-1, Access and Terminals (AT);Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks;Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017;Part 1: General aspects.
  • ES 203 021-2, Access and Terminals (AT);Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks;Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017;Part 2: Basic transmission and protection of the network from harm.
  • ES 203 021-3, Access and Terminals (AT);Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks;Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017;Part 3: Basic Interworking with the Public Telephone Networks.
  • ETS 300 659-1, Subscriber line protocol over the local loop for display (and related) services; Part 1: On hook data transmission (Caller-ID)
  • ETS 300 659-2, Subscriber line protocol over the local loop for display (and related) services; Part 2: Off-hook data transmission (Caller-ID)
  • ETS 300 659-3, Subscriber line protocol over the local loop for display (and related) services; Part 3: Data link message and parameter codings (Caller-ID)
• South Africa
  • TE-001, Standard Specification for Telephone Attachments for Connection to the Public Switched Telephone Network
  • TE-002, Functional Requirements for Telephone Answering Machines and Recording Equipment
  • TE-003, Functional Requirements for Repertory Dialling Equipment
  • TE-005, Functional Requirements for Loudspeaking Equipment
  • TE-010, Functional Requirements for Calling Line Identification (CLI) Customer Premises Equipment (CPE)
• China
  • GBT15279, The Specifications of Automatic Telephone Set
• Mexico
  • NOM-EM-151-SCTI-1998, Interface to public networks for terminal equipment (NIRPET)