Aastra SIP 53I Administrator's Manual page 327

Configuring Operational Features
Operational Features
Configuring BLFs
Use the following procedures to configure BLF and BLF\List on the IP phone.
Configuration Files
To set BLF or BLF\List in the configuration files, see Appendix A, the section,
Feature Key/Expansion Module Key Parameters"
41-001160-00, Release 2.1, Rev 04
on page A-136.
"Softkey/Programmable Key/
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