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If you are unsure what BLF is or would like a bit more detailed information about it, then you can click on the following to find out more: What is BLF?
To set up BLF on the Grandstream phones - the GXP1630 and above - you can follow the steps below:
For the value of your BLF key, while you can put the SIP Usernames of other users on your account for easy access to see whether they are on the phone - which can be found under Users - you can also put an extension number instead!
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26 January 2017
Find out about VoIP phones and how, when combined with a VoIP provider, they can help lower your business call costs
16 March 2017
You can't have VoIP, also known as Voice over IP, without a voice, so here are 10 fantastic facts you may not know about your voice.