A wholesale Application Programming Interface is a set of defined functions, methods or procedures that allows you to build private branded VoIP services. Using a VoIP API your web 2.0 application can dynamically interact with a VoIP platform's back-office functions such as billing and provisioning or network call control.
Benefits of VoIP APIs include:
- Open - Open VoIP APIs allow you to create applications that are bounded only by your imagination, combining any aspect of the underlying platforms capabilities in the manner you choose.
- Flexible - VoIP APIs allow you combine platform features in a unique way so that you can build differentiated services.
- Scalable - VoIP APIs permit you to grow your traffic without worrying about the capital costs associated with overbuilding a network for peak hour traffic.
- Cost Effective - VoIP APIs allow you to grow your business at your own pace, paying for platform resources only as needed when needed.

| Provider* | Overview | Compatibility | Coverage | Support | User Rating* | Details |
|---|---|---|---|---|---|---|
Wholesale VoIPAlcazar Networks is a wholesale VoIP provider with excellent rates on origination, termination,... |
Compatible with T.38 faxing, G.711 and G.729 codecs, DID service, and SIP, most IPs. | Alcazar Networks offers full coverage to US and Canada-based customers. | Supports most IP PBXs, computers, and Internet-enabled devices. | |||
Wholesale Carrier ProgramConexiant offers complete wholesale VoIP solutions for wholesalers, resellers, VARs, and businesses... |
Many locations worldwide. | Submit a support request through their website or chat with representatives on the website. Or call 855-44-CONEX, or 720-862-0005. You can also email them at info@conexiant.net. | ||||
Titanium IIIVoIP Innovations Titanium III provides a complete carrier solution for VoIP providers based out of... |
g.711, g.738, SIP, T.38 | Worldwide (US and over 60 countries) | Number Porting, e911, Caller ID, 411. Email, knowledge base, support hotline. | |||
Vitelity - Great Service |
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CommPeak Wholesale VoIPCommPeak offers wholesale VoIP services for all types of businesses with all kinds of needs. With... |
CommPeak wholesale VoIP is compatible with SIP, G.729A, GSM, G.711U, G.711A, SRTP, SIP TLS, and IPSec PSK. | CommPeak offers worldwide coverage. Rates vary by country. Check out their international rate for more detailed information. | Supports most IPs, IP-PBXs, and computers. | |||
MyTalkTelMytalktel is a specialized wholesale service provider for Call Centers and A-Z voice termination;... |
SIP, G729, G711, G723 | Full A-Z with specialized routes | Fast and reliable support through email, phone, and chat. |
