@bksales wrote:
after doing some testing, i know that using the yealink firmware 1.13 on t4x phones is bad. the blf function does not work. rolling back to 1.12 fixes the problem. we use the blf feature to monitor some parking lot slots. with firmware 1.13, the lights do not light up.
i tested this on
FreePBX 13.0.153
PBX Firmware: 10.13.66-13
Current Asterisk Version: 13.9.1
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Participants: 2