December 7, 2011 – 6:58 pm | 16 Comments

3CX is pleased to announce a new release of 3CX Phone System 10, build 22686. Service Pack 5 fixes numerous 3CX Wallboard issues and also adds a new and important caller ID feature. To download …

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Home » VoIP How To

Busy Lamp fields? VoIP Article

Submitted by on March 19, 2009 – 8:06 pmNo Comment

Busy Lamp fields are the LEDS on phones that indicate the status of other extensions.  BLF fields have been “inherited” from old style PBXs that have this feature.

Nowadays, presence information is also displayed via 3CX Assistant, however BLF remains a very popular feature. This article explains more about what BLF is and how it works in SIP context.

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