Click on your Grandstream IP Phone model in the below list to see a personalised configuration guide:
HT701/702/704, HT801/802/812/814 ATA Adaptors
To test your configuration please see this Help Article:
Testing your VoIP Device's Configuration
If you run into issues registering your phone online, with placing calls, or with audio quality the following Help Articles offer useful troubleshooting advice:
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