- 調査対象となった通信事業者の83%は、2016年までにボイス オーバーLTE (VoLTE) を導入する予定であり、現在の3%からは上昇する見込みである。
- 回答者のIMS導入を牽引する別の大きな要因として、複数のアクセス方法を介して統合型サービスを提供できることがある。
- 固定回線のボイス オーバーIP (VoIP) サービスは、IMS導入理由の大部分を占め続けており、調査回答者の100%が2016年までに、職場および住宅あるいはその両方にIMS上で動作するVoIPサービスを提供する予定である。
- 仮想化とNFV (ネットワーク機能の仮想化) を巡る議論がヒートアップしており、IMSがその議論の中心となっている: 回答者の圧倒的多数が2年以内にNFV環境でIMSネットワークを実現したいと表明した。
- NFV環境に適合する製品を積極的に開発していないベンダーは、 RFPを達成できないだろう。
VoLTE is top driver for IMS but comes with challenges; virtualization a hot topic for operators [Campbell, CALIFORNIA, July 10, 2014-Market research firm Infonetics Research released excerpts from its 2014 IMS Service Strategies and Vendor Leadership: Global Service Provider Survey, for which carriers with IP multimedia subsystem (IMS) core equipment in their networks were interviewed to assess their needs, plans, and ratings of IMS vendors. ANALYST NOTE "Among carriers participating in our latest IMS study, it's clear that although voice over LTE (VoLTE) is the largest driver for IMS, it also presents new challenges such as a limited set of compatible handsets and a weak business case. It'll be tough to justify spending capital on a new network for just voice that represents flat-to-declining revenue, requiring providers to look well beyond running voice over IMS," says Diane Myers, principal analyst for VoIP, UC, and IMS at Infonetics Research. IMS SURVEY HIGHLIGHTS
- 83% of carriers surveyed say they will deploy voice over LTE (VoLTE) by 2016, up from 3% today
- Another top factor driving respondent IMS deployments is the ability to offer converged services over multiple access methods
- Fixed-line voice over IP (VoIP) service continues to represent the majority of IMS deployments, with 100% of survey respondents planning to have business and/or residential VoIP services running over IMS by 2016
- Discussions around virtualization and NFV (network functions virtualization) are heating up, and IMS is in the thick of things: Respondents overwhelmingly expressed a desire to run IMS networks in an NFV environment within 2 years
- If vendors aren't actively developing products suited for an NFV environment, they will fall short in RFPs