IP as applied to voice and other applications and services is an emerging market with enormous growth potential and the ability to transform the communications services industry. This report series analyzes the market for traditional/legacy voice services and emerging IP communications services including hosted IP communications services, IP trunking, and hosted unified communications. It also examines service provider strategies to facilitate the usage of IP as well as enterprise adoption of and migration to emerging IP communications services. This service further quantifies the opportunity for personal IP communications services and communications-as-a-service (CaaS) applications delivered from the cloud.

• Hosted IP voice and SIP trunking
• Hosted IP communications and applications services
• Personal IP communications
• Enterprise migration from legacy to IP voice services
• Communications as a service
• Enterprise adoption of VoIP and end-user trends and challenges

• U.S. Hosted IP Voice Forecast
• U.S. SIP Trunking Forecast
• Enterprise Voice Migration: TDM to VoIP
• 2012 WAN Manager Survey: Business VoIP
• Communications-as-a-Service Insight

In addition to the insight provided in this service, IDC may conduct research on specific topics or emerging market segments via research offerings that require additional IDC funding and client investment.

1. What is the role of the service provider in delivering IP communications services across the enterprise?
2. How can operators and vendors implement IP communications solutions that meet the needs of companies ranging in size from small businesses to large enterprises?
3. What is the enterprise migration path from legacy TDM voice to VoIP services, and when and how is the migration occurring?
4. What role will vendors such as Cisco and Microsoft play in delivering communications as a service?

This service reviews strategies, market positioning, and future direction of several providers in the enterprise voice and IP communications services market, including:

8x8, AT&T, Avaya, Broadsoft, Broadvox, BT, CallTower, Cbeyond, CenturyLink, Charter, Cisco, Comcast, Cox, EarthLink, Fonality, Global IP Solutions, HP, Hughes, IBM, Integra Telecom, IntelePeer, Level 3, Megapath, Microsoft, Nuvio, Optimum Lightpath, Polycom, ShoreTel/M5, SimpleSignal, Sprint, Sylantro, Thinking Phones, Time Warner Cable, tw telecom, Verisign, Verizon, West/Smoothstone Communications, WVT Communications Group, Windstream, and XO Communications.

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