When I’ve spoken with non-nationwide carriers recently, I’ve noticed that there are more and more concerns about Voice over LTE (VoLTE), especially when discussing E9-1-1 for VoLTE. Questions vary widely. Here’s a list of six key areas (in no particular order) before embarking on a VoLTE project.
- If your network is hosted, develop your VoLTE project plan with your IMS core and UTRAN solution provider(s) and, if you’re already working with Intrado, include us in the 9-1-1 portion of the project plan. Specifically for VoLTE E9-1-1, you’ll need to consider the call path changes in your IMS core and new signaling e.g. diameter.
- Consider location servers for Phase 2 location. You’ll need either an eSMLC network for E9-1-1 location or you’ll need to identify a solution provider, like Intrado, for hosted eSMLC.
- Start the conversation early about SIP for voice path and signaling to your MME for location. The right partner should review all the signaling and connections needed to support VoLTE E9-1-1. Choose a provider that supports the signaling connection needed to support home and roaming device location queries in their MME. Remember, VoLTE is a new voice path that is IP-based (or SIP) and uses new signaling for location queries to and from the eSMLC to the MME and the devices.
- Create a network checklist for all the regulatory requirements and changes that have to be supported with VoLTE i.e., E9-1-1 and CALEA. It’s essential to engage with the right provider early for planning and testing interoperability of your IMS voice core and MME.
- As most carriers know, the customer voice call experience is key to a successful VoLTE launch. Not all devices are equal, so you’ll need to look at VoLTE support in your device ecosystem. We encourage testing each VoLTE device out to the cell site edge to ensure you don’t lose significant coverage when you migrate your customers from 3G voice to VoLTE. Beyond providing the best call quality possible, the new FCC rules on wireless indoor location means location technology support is more critical than ever.
- Network location performance is a crucial component to a successful VoLTE launch. You need to consider tools that help you optimize location performance on your network, such as Intrado’s Location Performance Management (LPM) solution. This tool helps carriers meet compliance for coming changes in E9-1-1 accuracy, as well as enhancing overall commercial location performance on your network. You’ll be able to pinpoint which 3G areas are optimal to turn down first—and you’ll improve your overall customer experience as you roll out exciting new services with VoLTE.
Want to learn more about upgrading to VoLTE? Contact us at email@example.com or visit us at booth #217 at CCA 2015, October 7-9 in Fort Lauderdale.