Internet telephony service provider
An Internet telephony service provider (ITSP) offers digital
ITSPs provide services to end-users directly or as whole-sale suppliers to other ITSPs.
ITSPs use a variety of signaling and multimedia protocols, including the
Retail customers of an ITSP may use traditional analog telephone sets attached to an
ITSPs are also known as voice service providers (VSP).[citation needed]
History
In the United States,
Usually, ITSPs negotiate agreements for route termination to various parts of the world from multiple VoIP providers. ITSP customers may be able to choose a VoIP provider for their VoIP calls. Customers may be able to do this by specifying the maximum price they are willing to pay per minute for a call and the lowest quality they are willing to tolerate. The ITSP routing software searches for the wholesale VoIP providers who meet the customer specification and attempt to route the customer call to the providers starting with the one have the lowest quoted price. Pricing to different parts of the world depend on several factors, such as the routing via a
See also
- Inphonex
- List of VoIP companies
- SIP trunking
- Telecommunications service provider
- VoIP
References
- ^ Southeren, Craig (January 2005). "Keynote speech, Free Software/Open Source Telephony Summit". Archived from the original on 2009-02-06. Retrieved 2009-01-23.
- ^ "Timeline". Retrieved 2008-09-25.
November 1995 Announces Plans to Release First PC-to-Phone Technology