Introduction

How to install a new Feature key on the Mediant 800.

Reason: to unlock all four ISDN B-channels

1. Connect to the T640/T440 using SSH
2. Login using username root, and your admin PIN
3. Open telnet connection to MGW:
   # telnet 169.254.231.252
4. Login using username Admin, password Admin
5. Enter enable mode:
   Mediant 800 - MSBG> enable
   You have to enter the password again Admin
6. Mediant 800 - MSBG> show system version
   Note the serial number of the device
7. Enter system configuration mode:
   Mediant 800 - MSBG# configure system
8. Look up the feature key from the text file using the serial number recorded in step 5.
9. Add the feature key
   Mediant 800 - MSBG(config-system)# feature-key "[280 character feature key string]"   
   " " are needed if the feature-key string has ? as a character.
10. Leave configuration mode
    Mediant 800 - MSBG(config-system)# exit
11. Verify the feature key:
    Mediant 800 - MSBG# show system feature-key
    You should check the line: Channel Type: RTP DspCh=8 then you know it is done correctly.
12. Save configuration
    Mediant 800 - MSBG# write
13. Restart the MGW:
    Mediant 800 - MSBG# reload now

Info about feature key before inserting the Serial.

and after: