Learn how to use the Grandstream GXP2135 from the experts at Modern Telecom!
0:05 Making a call send key, end key
1:28 Moving pages BLF keys & feature buttons
2:23 Middle menu button & exit button
2:57 Answering a call and placing caller on hold
4:18 Transferring a call
5:22 Putting a call on hold and taking a second call
7:39 Detailed transferring demo
9:40 Call parking
13:45 Conference calls using the conference server
23:29 Activating closed times
24:47 Do Not Disturb
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