INTERNATIONAL  TELECOMMUNICATION  UNION

		     ITU-T RECOMMENDATION SUMMARY


Rec. No. : F.86

Title :	Interworking between the international telex service and the 
	videotex service

Study Group : I - Services

Version : New

Date of adoption : 1991

Notes :	


Recommendation F.86 defines the service requirements and operational 
procedures for interworking between the international telex service 
and the videotex service.

Interworking is intended to extend the usefulness and accessibility of 
both services, while ensuring that the Quality of Service perceived by 
subscribers to either service and within that service is not degraded.

Interworking between the telex and videotex services shall be provided 
by means of a telex/videotex conversion facility (VTXCF), the two 
sides of which comply with the telex and videotex service requirements 
respectively.

Recommendation F.86 sets out the service principles, the methods of 
interworking, for both telex-to-videotex and videotex-to-telex 
directions.



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