Hosted PBX providers offering cost-effective business VoIP solutions to help unify all aspects of business communications.

Offer cheap international calls to a variety of locations around the world, starting with rates as low as 1p per minute.

Call center solution provider for predictive dialer, auto dialer, IVR, PBX, CRM. Communication tool for voice, SMS, and email.

Specializes in powerful voice and data solutions for businesses as well as data solutions for the home nationwide.

Offers telephone and switchboard support solutions in Australia.

Provides voice and data services for small to mid size business. A range of IT consulting services for the Midwest.

Multi-line hardware for computer integrated Caller ID business applications. Includes product guide, comparison and compatibility charts, pricing, and technology.

Worldwide developer of SIP-based communications software for service providers, ISVs and OEM partners. Offers product & solution overviews, tutorials, links to news and events.

Portal for the commercial development of the Session Initiation Protocol. Provides a technology showcase, a test bed with user agent downloads, industry news and a virtual trade show.

Develops network and data management solutions for wired and wireless voice, data, and Internet communications providers. Provides service and solutions overviews, customer newsletter, industry news and event links.

Provides session controllers to deliver real-time control of voice and multimedia across IP networks for Tier 1 service providers. Offers product and application descriptions, company news, career opportunities and training/support links.

Better Applied Telephony (BATphone) manufacturer and supplier. Provides product descriptions, access to knowledge base and tutorials, infrastructure data and customer list.

Offers SIP-based communications solutions and products to small, medium and large businesses. A newsletter, user manuals and product documentation are availabe. Provided in both English and Swedish.