[Asterisk-Users] Who would use Asterisk SS7?

Steve Underwood steveu at coppice.org
Fri May 23 18:35:49 MST 2003


Mike M wrote:

>What about clear channel T1?  The higher price on T1 with robbed-bit 
>signaling is the phone company's way of disincentivizing their use.  The 
>phone company wants you to use SS7+IMT (clear channel T1) to connect to the 
>trunk side of the network. It's more efficient and safer for them.
>
What is the relevance of the last sentance? Cost of provision seldom has 
much to do with telecom pricing, even when there is major competition. 
Have you noticed how many people on this list, from a variety of 
countries, ask about MFC/R2 support? That is the slowest, clunkiest 
signaling of all, requiring more hardware resources than any other 
option. In many places it is either the cheapest or the only option 
users have.

ISDN and SS7 have always been the cheapest and most efficient for the 
telco. In most places SS7 is only available if the user has some kind of 
official telephone operator status. No such restrictions generally apply 
to ISDN, although lots of places attach other strings to it, to suppress 
its use. However, there are still few places around the world were ISDN 
or SS7 are priced on par or lower than the slow clunky protocols. It is 
changing, but soooooo sllllooowwwllllyyyy.

Regards,
Steve






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