|
|||||||||||||||
Home : ITU-T : Publications : Recommendations : I Series : I.257.1 : I.257.1 (08/92) | Recently posted - Search Recommendations | ||||||||||||||
I.257.1 : Additional information transfer supplementary services : User-to-User Signalling | |||||||||||||||
|
Top -
Feedback -
Contact us -
Copyright © ITU 2008 All Rights Reserved Contact for this page : ITU-T Publications Updated : 2011.03.14 |