Voip - is there any reliable company?

Do you know any reliable company for Voip service?
I was searching the net and found softswitch24.com - they offer Voip service and the price looks reasonable for me.
I am not quite sure in their reliability and, frankly speaking, I am afraid to deal with wrong place.

Do you know them? Can I rely on them?

Alternatives?

I use Broadvoice.com - been with them for 2+ years.  I have never had an issue with them - ever.  Crystal clear voice and oodles of features for free.  I have the $24.95 plan which includes 57 countries - unlimited calling.  My wife calls her sister in Poland and talks at least 8-10 hours a month.  There is also a $19.95 plan with 29 countries, and unlimited domestic calling plans as well.  I highly reccomend them.  Hope this helps.   Sulman 2000

If you are going to start your own VOIP service, softswitch24.com will be the best option for you as I know many VOIP providers use their services. They offer all necessary software and hardware for Billing, Routing of VOIP calls, etc.
To originate or terminate phone calls via the SoftSwitch24s Service you basically need a multimedia gateways supporting H.323 or SIP protocols. 
Just contact them directly.

I have heard much good related to softswitch24.com - these guys know how to do their job qualified.
You will be able to register and monitor as many gateways as you need, real-time call detail records - highly customizable online reports providing you with any Billing/Sales/Support information, moreover, billing parameters may be changed online in real time. 

It happened so that I found many advantages of using softswitch24.com:
- their typical client is a VoIP operator who has a lot of gateways around the world that have to be monitored and billed;
- you set your own rates for every route you create;
- for testing of SoftSwitch24 Service they provide you with special Account ID.
So, you can test them and see how they are good...

Wow...
It looks like it will be reasonable to start providing VOIP service and Softswitch24 can be a good option for your and my start.

Do they offer any FREE period to test the service?

How long have they been providing this service?

Dear, Although they are offering services in cheap rates but they do not give any kind of  reliability.

you can surely check talkfree , they have really cheap prices and a better quality, i have used them before an year and was nice.