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q733_1s.txt
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1994-11-04
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INTERNATIONAL TELECOMMUNICATION UNION
ITU-T RECOMMENDATION SUMMARY
Rec. No. : Q.733.1
Title : Stage 3 Description for call completion supplementary services
using signalling system No. 7
Study Group : XI - Switching and Signalling
Version : New
Date of adoption : 1992
Notes :
CALL WAITING (CW)
The CW supplementary service permits a subscriber to be notified of an
incoming call (as per basic call procedures) with an indication that
no interface information channel is available. The user then has the
choice of accepting, rejecting or ignoring the waiting call (as per
basic call procedures).
To order the complete text of this Recommendation, please use the
Order Form for ITU-T Recommendations. An electronic version of this
form is available on ITUDOC (Winword 2.0: UPI=ITU-5265; ASCII: UPI=ITU-2488).