Author: admin

Asterisk TDM Gain Level – tx and rx

To adjust the voice gain level, tx or rx : at Dahdi config : /etc/asterisk/chan_dahdi.conf txgain : Increase for outgoing audio. Default 0. rxgain : Increase for incoming audio. Default 0. After done, restart asterisk to make it...

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Checking SSD Health

To check SSD health, need to install smartertools At Ubuntu or similar Distro (CentOS please use yum) #apt-get install smartmontools Check the Media_Wearout_Indicator # smartctl -a /dev/sda | grep Media_Wearout_Indicator To show...

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What is PVID in Cisco

PVID = Port Vlan ID PVID (Port VLAN ID) is a default VLAN id assigned to frames coming to the port Example 1. interface fa0/1   switchport mode access   switchport access vlan 10   switchport voice vlan 20   switchport trunk...

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