Aastra 6730i Administrator's Manual page 416

Operational Features
sip line1 bla number: 1010
Note:
The original phone number which has the bridged line appearance on other phones, will have the "sip lineN user
name" parameter the same as the "sip lineN bla number" (1010 in the above example on Phone 3).
Configuring Global BLA Using the Configuration Files
Use the following procedures to configure global BLA on the IP phone.
Configuration Files
For specific global parameters you can set in the configuration files, see Appendix A, the section,
"SIP Basic, Global Settings" on page A-61.
Configuring Per-Line BLA Using the Configuration Files
Use the following procedures to configure per-line BLA on the IP phone.
Configuration Files
For specific per-line parameters you can set in the configuration files, see Appendix A, the section,
5-175
"SIP Basic, Per-Line Settings" on page A-69.
41-001343-02 REV05 – 07.2014