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GRP261x Quick User Guide

Updated on March 27, 2026

PeerOne Hardware Guide #

Grandstream GRP261x / GRP2624 / GRP2634 Quick User Reference

📄 Quick Resource: Download the printable PDF version of this guide.
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Button Legend #

Speaker Speaker
Headset Headset
Hold Hold
Transfer Transfer
Conference Conference
Voicemail Message
Mute Mute

Core Operations #

Feature Instructions
Make a Call Lift handset or press Speaker. Dial number and press SEND or DIAL.
Answer Call Lift handset or press Speaker. For call waiting, press Answer to hold the current call.
Redial Press the Redial softkey to call the last dialed number.
End Call Hang up the handset or press the EndCall softkey.

Advanced Call Handling #

Feature Instructions
Hold / Resume Press Hold (). Resume by pressing the blinking LINE key.
Blind Transfer Press Transfer, dial the number, and press the BlindTrnf softkey.
Attended Transfer Press Transfer, dial number, wait for answer, then press Transfer again.
Conference Call While on a call, press Conference (), dial 3rd party, and press ConfCall.
Manage Conf. Press Kick to remove a party; press Hold to hold all parties.

Audio & Messaging #

Feature Instructions
Voicemail Blinking green LED = New Message. Press Message to retrieve.
Mute Press Mute () to disable microphone. Check icon on display.
Volume Control Use Volume button () to adjust ringer or call audio levels.
💡 Pro Tip: To end a conference call for everyone, the initiator must hang up or press EndCall.

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