Study Group 8 has agreed to propose amendments to Recommendations T.4 and T.30 to include the optional use of the modulation system defined in Recommendation V.34. Amendment 2 to Recommendation T.90 covers the addition of a Telematics Profile Identifier to distinguish the use of the procedures in Annex C/T.30, in the analogue mode with the V.34 full-duplex mode from its use in the digital mode in the ISDN environment.