Westell VOICE QOS GATEWAY User Manual

Networked HomeLife Solutions

Delivering Carrier-Grade Services Throughout the
Home With a Voice QoS Gateway

Here’s the Problem

Mobile and next generation voice service providers are real­izing an opportunity to signicantly increase average revenue
per user (ARPU) by delivering more services to the home.
Many new devices are now available to extend voice services

throughout the home:

• Femtocells to expand cellular coverage within the home
while reducing backhaul costs by using the broadband
network for backhaul.

• DECT/VoIP phone systems to deliver integrated voice and /

data services to users via the convenience of cordless
phones.

• WiFi handsets to extend network-based VoIP service
throughout the home.

Particularly attractive is the use of existing broadband net­works (DSL, cable, FTTH) for backhaul to the service provider’s

core network to reduce costs while delivering more services.

But service providers face significant challenges in delivering
high-quality voice services over broadband networks and home
networks over which they have no control:

• Voice calls have no guarantees with retail and unspecied
broadband home routers.

• Voice quality suffers when competing with data trafc in
the home for precious bandwidth on both the wireless
interface and the broadband connection.

• Femtocell signaling over a Generic Access Network may
fail if delayed by competing traffic from the home.

• Complex user setup and conguration requirements result
in costly support calls, or worse, product returns and
service cancellations.

Here’s the Solution

Now mobile service providers can deliver voice services to and throughout the
home with a managed customer solution that puts control back in the service
provider’s hands.

The Westell VersaLink 7501 is a carrier-class QoS gateway that is specifi­cally designed to deliver high-quality voice service and enhanced user experi­ence throughout the home, while reducing carrier support costs. The VersaLink
7501 ensures Quality of Service for carrier devices in the home:

• Assures prioritization of device-specic trafc, such as femtocells or DECT
phone systems, on the broadband uplink

• Prioritizes device-specic trafc for routing over the Wireless LAN (WLAN)

• Supports multiple IP Security tunnels

• Establishes relative priority of device-specic trafc over competing trafc
routed to the WAN

The VersaLink 7501 ensures voice quality on wireless devices:

• 802.11b/g with extended range and throughput ensures high-quality
connections throughout the home. Verifiably measured improvement over

leading retail WLAN routers.

• WMM QoS ensures prioritization of voice trafc on the wireless interface

• Dual SSIDs allow for dedicated SSID for voice handsets – simplies user
setup and ensures prioritization for handset trafc

• WLAN auto channel selection determines optimal channel for transmission

The VersaLink 7501 enhances the user experience:

• Fast setup: connect cables, power-on, and go

• Automatic pairing of wireless voice devices like Dual-Mode Handsets

• Minimizes support calls and product returns

• Extends the battery life of WLAN handsets

• Remotely managed and congured by the service provider

Delivering Carrier-Grade Services Throughout the Home
With a Voice QoS Gateway

Here’s How It Works

The VersaLink 7501 can deliver QoS to any service provider device: Femtocells, DECT systems with integrated VoIP,
Telephone Adapters, WLAN handsets.

The VersaLink 7501 enables deployment with minimal user involvement….

• The VersaLink 7501 connects via Ethernet to any broadband modem: DSL, Cable, FTTH ONT, etc. It automatically detects a routed
IP or PPPoE WAN and congures itself.

• The service provider device can connect to the VersaLink 7501 via Ethernet cable or as an 802.11b/g WLAN client.

• The VersaLink 7501 automatically identies the service provider device and assigns an IP address. The 7501 uses this address to

identify device-specific traffic.

• Wireless push button conguration and 2nd SSID for handsets enable automatic pairing of approved devices with WEP, WPA, or
WPA2 security. Handsets may be pre-provisioned with an SSID and security key, or easily paired with push-button or PIN setup.

Application Note

• TR-069 support and remote GUI capabilities enable a truly managed solution. The service provider can remotely congure the

7501 and run diagnostics.

Homezone Service via Femtocell

VoWiFi and DECT Services