Cadence Flash F200-2 Průvodce řešením problémů stáhnout pdf (Strana 61)

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Audio commands 61

administrator privileges on Windows 2000; carefully follow the

installation instructions provided by Xircom.

Note:

Removing the card without performing the Windows unplug

or eject hardware procedure can cause the PC to reset.

Audio commands

The following commands can be useful to debug audio-related problems.

• tsm_set_rx_gai

Send a message to a DSP channel to set the Receive (RX) audio gain.

• tsm_set_tx_gai

Send a message to a DSP channel to set the Transmit (TX) audio

gain. Displays terminal data for each IP Phone.

The volume of the Receive (RX) and Transmit (TX) paths through the

gateway is set through a combination of DSP pad levels and the fixed

levels in the IP Phones. VGMC/Signaling Server extends the dynamic

loss plan to the M1 system, so all system types use it. The Call Server

sends the VGMC pad messages for each call to set the gains through the

gateway. Use the commands in this section to examine the values used

in this process.

The DSP level is specified as gain, so the in_gain and out_gain values

printed by dimPrintChannelInfo are sign reversed from the normal loss

values.

The Internet Phones and IP Softphone 2050 internally set unique gain

levels internally to achieve the TIA-810A standard of RLR = +2 and SLR

= +8. These values normally remain at the default levels, as these values

are used in the loss plan setting for other areas of the system. However,

some customers in the United Kingdom expect the louder levels (for

example, non-TIA-810A/912 compliant) as offered by their existing digital

phones. New CLI commands can be used to manually increase the IP

Phone default levels.

• lossPlanClr

Clear changes to the IP Phone default gain settings.

• lossPlanPrt

Display the IP Phone gain settings.

• lossPlanSet

Change the handset, headset, or handsfree gain settings by +/-8 dB.

• UKL

Clear changes to the IP Phone default gain settings.

Nortel Communication Server 1000

Troubleshooting Guide for Distributors

NN43001-730 02.02 31 December 2009

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