AOS-W 6.5.3.x | User Guide Voice and Video | 927
Chapter 38
Voice and Video
This chapter outlines the steps required to configure voice and video services on the Alcatel-Lucent switch for
Voice over IP (VoIP) devices, including Session Initiation Protocol (SIP), Spectralink Voice Priority (SVP), H323,
SCCP, Vocera, Wi-Fi calling, Alcatel NOE phones, clients running Microsoft Lync Server, and Apple devices
running the Facetime application. As video and voice applications are more vulnerable to delay and jitter, the
network infrastructure must be able to prioritize video and voice traffic over data traffic.
This chapter includes the following topics:
n Voice and Video License Requirements on page 927
n Configuring Voice and Video on page 927
n Working with QoS for Voice and Video on page 936
n Unified Communication and Collaboration on page 945
n Understanding Extended Voice and Video Features on page 964
n Advanced Voice Troubleshooting on page 988
Voice and Video License Requirements
The voice and video services require PEFNG licenses on the switch. For complete details on the required
licenses, see Software Licenses on page 79.
Configuring Voice and Video
This section describes the steps required to set up and configure voice features on a switch:
1. Set up net services
2. Configure roles
3. Configure firewall settings for voice and video ALGs
4. Configure other parameters depending on the need and environment
Assigning voice traffic to the high priority queue is recommended when deploying voice over WLAN networks.
Voice ALG and Network Address Translation
Voice ALGs do not support Network Address Translation (NAT). This is due to the way NAT functions and the
way IP addresses are embedded in the signaling messages. In a typical customer deployment, a call server is
deployed within an internal network which eliminates the need for NAT.
In short, voice ALGs should not be enabled when voice clients are behind a NAT.
Setting up Net Services
You can either use the default net services and ports or you can create or modify net services.
Using Default Net Services
The following table lists the default net services and their ports:
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