How can I calculate the required bandwidth for each participant in the UCM6300 series for video conferencing?

• For conferences with 4 or fewer video feeds:

Required bandwidth per participant (in Mbps) = (A1 + B0.172) * 1.2 + 0.1 Where A is the number of 1080p video feeds (A = 0 or 1); B is the number of participants excluding A. (B = Total number of participants – A); 1.2 represents the consideration of additional video bandwidth costs like packet headers; 0.1 represents the bandwidth for audio.

• For conferences with more than 4 video feeds:

Required bandwidth per participant (in Mbps) = X * 0.172 * 1.2 + 0.1 Where X is the total number of participants; 1.2 represents the consideration of additional video bandwidth costs like packet headers; 0.1 represents the bandwidth for audio.

• For conferences with screen sharing:

Required bandwidth per participant (in Mbps) = (X * 0.172 + 0.512) * 1.2 + 0.1 Where X is the total number of participants; 1.2 represents the consideration of additional video bandwidth costs like packet headers; 0.1 represents the bandwidth for audio.

Note:

The above calculations apply to the required bandwidth per participant. To estimate the required bandwidth for the UCM6300 series, consider the number of participants and aggregate these values.

In UCM6300 series video conferencing, are all video feeds using 1080p?

No, only one video feed can be 1080p or 720p. Additionally, if there are more than 4 video feeds or screen sharing during the video conference, the video bit rate for 1080p/720p video feeds will be reduced.

What are the default video bit rates and frame rates for UCM6300 series video conferencing?

For 1080p video: 1 Mbps/15 fps. For 720p video: 512 kbps/15 fps. For 360p video: 172 kbps/15 fps. For screen sharing: 512 kbps/5 fps.

These configurations can be modified based on user preferences, and the trade-offs between video quality and maximum participant count may affect the total maximum conference participant limit.

How can I use UCM6300 series behind NAT?

• If using UCM RemoteConnect service, the UCM6300 series behind NAT can work with your Grandstream devices, Wave Web, and Wave mobile apps without additional NAT settings on your network routers. However, if end-users experience audio issues, ensure that in UCM6300 series web user interface->Added Values->Remote Connection->Plan Settings, the Media NAT Traversal Service is enabled. By default, it’s already enabled.

• If not using UCM RemoteConnect service:

Method 1: Configure port forwarding for your UCM. This will be limited by the type of NAT of the UCM and the endpoint devices.

Method 2: Use self-deployed or existing STUN/TURN servers. In the UCM6300 series web user interface, you can go to admin PBX Settings->RTP Settings, enable ICE Support manually, and configure STUN/TURN server settings accordingly.

How can I configure the audio quality of conferences?

Go to PBX Settings->General Settings and configure the “Conference Audio Quality” option. Setting it to “Full Band HD Audio” will use a 48 kHz sampling rate for the Opus codec component, resulting in significantly better audio quality using Opus.

Note: When “Full Band HD Audio” is selected, the “Max Video Feeds” setting on the Conference Settings page under Call Features->Video Conferencing is currently limited to 4. Future hardware and software updates might lift this performance limit.

How many LDAP entries can be in UCM6300’s internal memory? How many people can UCM6300 return per endpoint device query?

There is no exact limit to the number of LDAP entries UCM6300 can store. It’s recommended to limit it to 20,000 to avoid affecting the performance of the UCM web page. The number of people returned per endpoint device query will be constrained by the number of people supported by the endpoint device.

I can’t use my desk phone, Wave Web, and Wave mobile app with the same SIP account simultaneously. Why?

To use the same SIP account on a desk phone, Wave Web, and Wave mobile app simultaneously, you need to allow 3 or more simultaneous registrations for the same SIP account. By default, the number of simultaneous registrations is set to 3. You can change this setting by logging into the UCM6300 series web user interface, going to Extensions/Trunks->Extensions, and editing the “Concurrent Registrations” extension option to 3 or more.

Note: The same SIP registration password is used to register the SIP account on the desk phone and to log in with the internal number on Wave Web/Wave mobile app.

What are the main features of the UCM6300 series in terms of video conferencing?

The UCM6300 series offers various features for video conferencing, including:

• Up to 1080p video resolution.
• Configurable video bit rates and frame rates.
• Support for multiple video layouts, including active speaker and gallery view.
• Screen sharing.
• Recording of video conferences.
• Picture-in-Picture (PiP) for enhanced participant interaction.
• Meeting scheduling and invitations.
• Control features for moderators, such as mute/unmute participants.
• Bandwidth usage optimization for different conference scenarios.
• Integration with other Grandstream devices and platforms.

It’s important to refer to the official Grandstream documentation for detailed information and guidance on utilizing these features effectively.

Keep in mind that this text is a compilation of various questions and answers related to the Grandstream UCM6300 series and its associated products. When you need a more specific or detailed inquiry, referring to Grandstream’s official documentation, support resources, or customer services can be beneficial.