Method and system for supporting a lifeline service to voice over dsl customers
A Standard patent application filed on 07 May 2001 credited to Chea, Ramon C.W.
;
Duffie, P. Kingston
Details
Application number :
2001257551
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Method and system for supporting a lifeline service to voice over dsl customers