Voice and Video Insufficient Bandwidth

Voice and video call quality for Office Communicator 2007 R2 and Live Meeting 2007 depends on the amount of network bandwidth available between the endpoints. The Office Communicator 2007 R2 and Live Meeting Console 2007 software are engineered to maintain high quality audio and video even under low bandwidth conditions. However, under severe conditions you may experience one or more of the following effects:

  • Loss of audio fidelity    Occurs when the voice of the person you are talking to does not sound as rich or as full as other calls.

  • Degraded video image    Occurs when the video image shows blockiness or loss of detail.

  • Choppy video    Occurs when the video does not have smooth motion.

Common causes of low bandwidth

Common causes of low bandwidth include the following:

  • Slow Internet connection    Occurs when the bandwidth provided by your ISP is insufficient.

  • LAN congestion    Occurs when routers or other network equipment are overloaded with too much traffic. This could occur on your home network, your ISP, or your company’s network.

  • Wireless LAN interference    Occurs when a large number of wireless devices are connected to the access points. Can also occur from interference from other devices such as cell phones, cordless phones, and a microwave oven.

  • Hardware configuration    Occurs when the network equipment is misconfigured in your home, in your ISP, or in your company’s network.

What can you do to improve bandwidth?

  • Contact your ISP about higher capacity Internet connections.

  • If you are using a wireless network, you can try the following to improve the connection:

    • Move closer to the wireless access point.

    • Find a less busy wireless access point to use.

    • Switch to a wired connection.

    • Check if other computers on the network are performing heavy downloads or uploads and see if they can be delayed or halted.

    • Ensure your router or modem has the latest firmware.

    • Check the network cables between the router and the modem to ensure that they are plugged in and do not show signs of damage.

    • Contact your system administrator if you are at work.

      Note: You can also refer to the product documentation for the router or WLAN card for additional ways to improve the wireless connection.

  • If you are on a wired connection, you can try the following to improve the connection:

    • Check if other computers on the network are performing heavy downloads or uploads and see if they can be delayed or halted.

    • Ensure your router or modem has the latest firmware.

    • Check the network cables between your computer and the router and between the router and the modem to ensure that they are plugged in and do not show signs of damage.

    • Contact your system administrator if you are at work.

Note: Note for IT Administrators    Consider deploying the Office Communications Server 2007 R2 Monitoring Server to get a detailed view of network quality in terms of bandwidth throughout your VoIP deployment.

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