I recently had the pleasure to read an excellent article by one of our industry’s leading analysts, Mr. Gabriel Brown of Heavy Reading titled “Analyzing Apple & VoLTE”. In this article, he makes the observation, that Apple – which is well known for keeping a strong focus towards their customer’s enjoying a high quality of experience – has included Voice over LTE (VoLTE) in their newest iPhones. Mr. Brown goes on to quite rightly note that by including VoLTE, Apple makes the case that mobile operators now need an IP Multimedia Core Network Subsystem (IMS core) and a functioning VoLTE service.
Figure 1: Cisco VNI Global Mobile Data Forecast 2013-2018
While I absolutely agree that Apple has provided a strong endorsement to VoLTE by including support for this feature, I believe that the Apple iPhone6 support for Voice over Wi-Fi (VoWiFi) and Text over Wi-Fi maybe as important (or more so). Let me explain. VoLTE is really a fact of life, it is going to happen and as long as a cell phone supports LTE it will be able to make or receive VoLTE calls as long as the carrier implements to network accordingly. However, Wi-Fi has long been maligned as the poor step-child of mobile broadband. Mostly because it is unruly (unlicensed) and anyone can deploy it (don’t have to be a carrier). And while the distance limitations and handoffs (Wi-Fi to 3G or to LTE) play a big role too those issues are being addressed (at least by Cisco). However, several reports, including Cisco’s own well regarded Visual Networking Index (VNI) for Global Mobile Data Traffic, show that mobile data usage over Wi-Fi is over 40% in 2013. In fact, it is projected that there will be more traffic offloaded from cellular networks onto Wi-Fi than remain on cellular networks by 2018 (that’s less than four years away).
This news is not Read More »
Tags: Evolved Packet Core, LTE, mobility, Service Provider, visual networking index, vni, voice over lte, VoLTE, wi-fi, wireless
Written By Alfonso San Jose, Sales Consulting Systems Engineer
We have been hearing from our Service Provider customers like you about their interest in Voice over Long Term Evolution (VoLTE), and for good reason. Offering VoLTE affects profitability in two ways. One is by creating a great voice experience that helps to attract and retain subscribers. VoLTE provides guaranteed quality of service and fast call-setup time. At the same time, VoLTE can lower network costs. However, VoLTE creates new demands on the network that requires a policy management solution to address. VoLTE changes the game for policy management because it imposes much heavier demands than 4G data services. The policy management solution needs to meet the following four requirements: Read More »
Tags: 4G LTE, Cisco Mobility, latency, PCEF, Service Provider, VoLTE
By Alfonso San Jose, Sales Consulting Systems Engineer
Now that LTE networks have been rolled out by most of the service providers in the world, the next objective for operators is the migration of the voice service to the LTE network. This migration is known as Voice over LTE or VoLTE.
VoLTE brings the two sides of the same coin. On the one hand, VoLTE is bringing multiple benefits for service providers (spectrum efficiency, high quality voice, OPEX & CAPEX reduction, etc) but on the other hand, VoLTE service is also bringing some challenges. Those challenges have an special impact on the Policy Management solutions currently deployed for Data Services as this node becomes a critical node in the network for VoLTE.
Policy Management plays a significant role in VoLTE and becomes a mandatory node in the network. This node is responsible for establishing and releasing, on behalf of the IMS domain, the bearer required to accommodate voice traffic.
Additionally, Read More »
Tags: LTE, PCRF, policy control, Service Provider, VoLTE
Mobile World Congress, the huge service provider-focused event, takes place next week in Barcelona, and Cisco has gotten a running start this week with much news about operator deployments:
- Magyar Telekom, Hungary’s largest telecommunications company, is using Cisco Mobile Internet solutions to deploy 4G/LTE multimedia services. Magyar Telekom, part of Germany’s Deutsche Telekom Group, selected the Cisco ASR 5000 Series mobile multimedia core platform, ASR 9000 Series routers and ME 3800X Series Carrier Ethernet Switch Routers to help transform its network for delivery of advanced mobile services like video, social networking and high-speed Web browsing.
- LG U+, a service provider in Korea, will trial two Cisco mobile Internet offerings to deliver voice, video and messaging services to its rapidly growing number of 4G/LTE customers. The Cisco V2oLTE solution, based on the ASR 5000, will help LG U+ meet the performance challenge of carrying voice traffic over LTE.
- Softbank, in Japan, recently became the first mobile operator in the world to deploy the Cisco ASR 903 unified Ethernet access router, and Softbank is now seeing the benefits of its high performance and small footprint. Cisco recently spoke with two Softbank executives about this.
- Another operator, Vodafone Hungary, is thinking about how not only to manage, but monetize, mobile traffic. Hear two of Vodafone Hungary’s strategic and technical leaders discussing how Vodafone Hungary is planning to leverage the intelligence in the ASR 5000 to design new services, deliver differentiated services and develop new business models.
Tags: 4G, ASR_5000, ASR_9000, ASR_903, Cisco, LTE, Mobile_Internet, mobility, operator, service_provider, VoLTE