VoIP.infoThe independent guide to business communications.
Watch · Video guides

See how it works.

Selected video explanations, paired with the written guides and version notes that help you put them to use.

Find your next video

Browse all 78 selections
Experience level, length and sorting
Clear filters

1 video · Showing 1–1

Phone operation · Foundational

Grandstream GRP2624: wiring and everyday calls with Lightspeed Voice

Lightspeed VoiceVersion-specific

Start with the physical connections and continue through the operations a new GRP2624 user will need: answering, holding, transferring, conferencing and checking messages. The guide connects the phone’s softkeys to the provider’s shared voicemail and parking setup. Its wiring explanation is also a useful companion when a desk shares one network cable between a computer and phone.

Watch & read notes →YouTube ↗

How to use these selections

Read the applicability note before following a configuration walkthrough. Older interfaces can still teach useful concepts; the written guides provide our current software baseline. Videos remain on the creator’s channel, and you can open them directly on YouTube.

Selection notes are based on the complete available transcript and checks against primary documentation. Audio and screen readability have not yet been independently verified. Chapter timestamps are included only when verified.

Selections are editorial. A creator may promote their own services or affiliate links; that does not establish a relationship with VoIP.info.

Claims worth examining

Some popular explanations need a closer look. These reviews distinguish useful ideas from claims that the protocol does not support.

SIP and VOIP. The Privacy Solution No One Knows About →