ITU-T Recommendation 1.460, Integrated Services Digital Network (ISDN), ISDN User-Network Interfaces, "Multiplexing, Rate Adaption and Support of Existing Interfaces", 1993, pp. 1-3. |
ITU-T Recommendation V.110, Series V: Data Communication Over the Telephone Network, Interworking With Other Networks, "Support by an ISDN of Data Terminal Equipments with V-Series Type Interfaces", 1996, pp. 1-55. |
CCITT Recommendation G.728, General Aspects of Digital Transmission Systems; Terminal Equipments, "Coding of Speech at 16 kbit/s Using Low-Delay Code Excited Linear Prediction", 1992, pp. 1-25. |