This section describes information and settings for a series of BRI advanced configuration screens. These BRI configuration screens are:
❑
ISDN Video Numbers. See Entering ISDN Video Numbers, on page 141.❑
Auto Detect Speed. See Entering or Detecting Service Profile Ids, on page 142.❑
Audio Quality Preference. See Setting Audio Quality Preference, on page 144.❑
Advanced Dialing. See Setting Channel Dialing Preferences, on page 145.❑
Dialing Speeds. See Selecting Dialing Speeds, on page 146.❑
ISDN Video Network. See Modifying ISDN Video Network Information, on page 147.Note
For information about the initial BRI configuration screen, see Setup for the Quad BRI Network Interface on page 89.
Entering ISDN Video Numbers
Use the ISDN Video Number screen if you need to change the area code and ISDN (BRI) video numbers that you previously set up during the out-of-box configuration.
To access the ISDN Video Numbers screen:
Select System Info > Admin Setup > Video Network > IMUX >
Numbers. The ISDN Video Numbers screen appears.
Figure 4-22. ISDN Video Numbers Screen
Your service provider should have given you these numbers when you purchased the ISDN line.
To enter information on this screen:
1. Press the arrow buttons on the remote control to move between fields on the screen.
2. Use the numeric keypad on the remote control to enter numbers in a highlighted field. To enter a dot, press the right arrow button on the remote control.
3. Highlight the Save icon and press the SELECT button on the remote control.
Entering or Detecting Service Profile Ids
The Service Profile Ids (SPIDs) can be configured manually or automatically detected by the system using the Auto Detect SPIDs screen.
To access the Auto Detect SPIDs screen:
Select System Info > Admin Setup > Video Network > IMUX >
SPIDS. The Auto Detect SPIDs screen appears.
Figure 4-23. Auto Detect SPIDs Screen
Note
This screen appears only if you selected United States or Canada as your country on the country screen.
Entering the SPIDs manually. The SPIDs obtained from your network service provider can be entered manually on the Auto Detect SPIDs screen. If you are behind an internal phone system (PBX), you may not need to enter SPIDs.
Automatically detecting the SPIDs. If you do not have any SPID numbers, highlight the Start icon to have your system try to detect them automatically. This initiates a process that automatically detects the SPID numbers associated with your ISDN line. This process can take as long as ten minutes, but will usually require three minutes or less. If you are behind a PBX, select the PBX icon.
Your system will try to locate the SPID numbers within the PBX.
If your system is unable to find your SPIDs, make sure that you are properly connected and that you have entered your ISDN numbers correctly.
Setting Audio Quality Preference
In most cases, the default setting identified during the initial system setup will be adequate for quality audio. However, the settings can be changed based on specific bandwidth requirement in the Audio Quality Preference screen.
The Audio Quality Preference screen lets you set the call speed threshold that determines which audio protocol is used. At the selected speed or lower, the system uses the G.728 audio protocol.
Above the selected speed, the system uses the G.722 audio protocol.
G.722 audio delivers higher quality audio, but uses 48 Kbps of the video bandwidth. G.728 delivers telephone quality audio and uses only 16 Kbps of the video bandwidth.
Note
For more information about the G.728, G.722, and G.722.1 audio protocols, refer to Video and Audio Information in the Integrators’
Reference Manual for ViewStation EX, ViewStation FX, and VS4000.
To access the Audio Quality Preference screen:
Select System Admin > Admin Setup > Video Network > IMUX >
Audio Quality.
To set your Audio Quality Preference:
Use the + and - buttons on the remote control to move the slider.
Changing the audio bars has no effect during an H.320 call. Note that this screen is not accessible during an IP (H.323) call.
Figure 4-24. Audio Quality Preference Screen
Setting Channel Dialing Preferences
On this screen, you can choose how the ViewStation FX or VS4000 system will dial its channels. Channels can be dialed in parallel or one at a time.
To access the Advanced Dialing screen:
Select System Info > Admin Setup > Video Network > IMUX >
Advanced Dialing.
Figure 4-25. Advanced Dialing Screen
Select one of the following two options:
❑
Dial channels in parallel—All ISDN channels are dialed simultaneously. This is the default setting.❑
Dial channels one a a time—Each ISDN channel is dialed after the previous channels has connected. Use this option if your network has problems dialing all the channels in parallel.Selecting Dialing Speeds
The Dialing Speeds lets you limit the choices that appear as speed selections. Offering a minimum number of speeds is a way to lower network traffic. The speeds that are selected in this screen will be displayed as dialing speed selections in the Video Phone and in the Address Book.
To access the Dialing Speeds screen:
Select System Info > Admin Setup > Video Network > IMUX >
Dialing Speeds.
Figure 4-26. Dialing Speeds Screen
The Nx56 and Nx64 columns list the dialing speeds available for ISDN calls.
The IPx56 and IPx64 columns list the dialing speeds available for IP calls.
To select dialing speeds:
1. Choose the appropriate dialing speeds.The default dialing speeds are 2 x 64 Kbps, 128 Kbps, 256 Kbps, 384 Kbps, 512 Kbps, and 768 Kbps.
2. To add or remove speeds, scroll through the data rates and press the SELECT button on the remote control to select your preferred dialing speeds; a red check appears when a dialing speed is selected.
Modifying ISDN Video Network Information
This screen allows you to modify the basic ISDN (BRI) options that were configured during the initial setup (see Setup for the Quad BRI Network Interface on page 89). These options are: