[asterisk-users] Teliax Quality of Service

[SIP]

Stephen Bosch wrote:
> Douglas Garstang wrote:
>   
>> I confused by this. Don't ITSP's have redundancy? Don't they have
>> multiple edge systems for accepting incoming calls? Don't their multiple
>> edge systems have multiple interfaces, connected to multiple subnets,
>> via multiple switches? And, don't they have multiple upstream providers?
>> About the only thing that could go wrong that affects all service like
>> this would be a badly pushed out software update, affecting all systems?
>>     
>
> Don't be confused. The answer to most of your questions is no.
>
> Barriers to entry are too small for ITSPs, and there are lots of
> basement operations masquerading as big carriers.
>
> -Stephen-
>
>   

There are also lots of big carriers masquerading as big carriers. ;)


If the ONLY people who could get into the business were the ones who 
could, before offering any services to customers, afford to build out 
multiple edge systems for accepting incoming calls, each with multiple 
interfaces connected to multiple subnets via multiple switches using 
multiple upstream providers, you would have ONE single choice for an ITSP.

And AT&T doesn't have that amount of redundancy in their network. 
Working in the carrier networking business, I can assure you that we've 
NEVER run across a SINGLE carrier network (not from the largest to the 
smallest) that has redundancy in ALL aspects (or even MOST aspects) of 
its network. This is why there are uptime policies that allow a 
percentage of outages to occur. Triple 9 uptime (Exceedingly rare, but a 
purported goal -- 99.999%) still allows 15 full hours of downtime a 
year. And that rarely includes the occasional lost packet or latency.


Face it. If you want service that never goes down, you're either able to 
pay the hundreds of millions to provide your own networks and build out 
your own redundancy, or you're stuck in the same boat with the rest of 
us -- be it that you choose a gigantic carrier or a mom 'n' pop ITSP.

N. h