INTERNATIONAL  TELECOMMUNICATION  UNION

		    ITU-T RECOMMENDATION SUMMARY


Rec. No. : I.464

Title : Multiplexing, rate adaption and support of existing interfaces 
	for restricted 64 kbit/s transfer capability

Study Group : XVIII - ISDN

Version : Revised

Date of adoption : 1991

Notes :	


Restricted 64 kbit/s transfer capability is defined as "64 kbit/s 
octet structured capability with the restriction that an all-zero 
octet is not permitted".

Recommendation I.464 sets out the special conditions applicable to 
Recommendations I.460, I.461 (X.30), I.462 (X.31), I.463 (V.110) in 
case of restricted 64 kbit/s transfert capability.

It introduces also the HDLC inverted mode for restricted transport 
capabilities.



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