ISDN:Specification

The ISDN protocol layer conforms to the following standards:

• ITU-T Q.920
• ITU-T Q.921
• ITU-T Q.931
• ETS 300 102
• ETS 300 125
• ETS 300 403-1, 403-2, 403-3
• AT&T TR 41459
• TS-013 and TS-014

TelcoBridges' implementation of ISDN supports the following switch variants:

• Q.921 LAPD
• Q.931 ISDN PRI
  • NI-2
  • Lucent 4ESS
  • Lucent 5ESS
  • Nortel DMS-100
  • Nortel DMS-250
  • Euro ISDN ETSI NET5 (French, German, UK, China, Hong-Kong, and Korea)
  • Euro Numeris (VN6)
  • Japanese NTT INS-NET1500
  • Australian