Mitel 6867i Administrator's Manual page 420

Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide
6873i Hard Key Mapping
hardkey7
Goodbye Key
hardkey6
Hold Key
hardkey5
Options Key
Notes:
1. The reprogramming of hard keys 5, 6, 7 (indicated above in red) is not supported.
2. Hard keys are only configurable using the configuration files.
5-159
hardkey4
Default type: callers
hardkey3
Default type: redial
Default value: N/A
hardkey2
Default type: line
Default line: 2
hardkey1
Default type: line
Default line: 1