Chapter 3 Configuring the Telephony Settings on the VG248
Configuring Port Parameters
3-14
Cisco VG248 Analog Phone Gateway Software Configuration Guide
OL-1209-02
Keep in mind that the value you are choosing is a delta value and does not reflect
the actual gain value. For example, if the base value is -3dB, you might choose
+1dB as the delta value. Therefore, the actual gain value for that port is -2dB
overall.
Setting the Input Gain
The input gain specifies, in decibels, the amount of gain from the analog phone to
the VG248.
The country option you set on the VG248 determines the default input gain.
However, you might need to modify it to account for different cable lengths, to
make the signal louder or quieter, or to use a phone from a different country.
Follow these steps to modify the input gain. The default setting is based on the
country code you set (see the
“Identifying the Country Code for VG248” section
on page 3-6
).
Step 1
From the main menu, choose Configure.
Step 2
Choose Telephony.
Step 3
Choose Port specific parameters.
Step 4
Use the arrow keys to select the port to configure and press Enter.
Step 5
Choose Input gain.
Step 6
Choose from the available options (ranging from -6dB t 14db)I
Keep in mind that the value you are choosing is a delta value and does not reflect
the actual gain value. For example, if the base value is -3dB, you might choose
+1dB as the delta value. Therefore, the actual gain value for that port is -2dB
overall.
