Grandstream WP820 wifi phone is fully compatible with sip.audio. It is however, not a professional audio device. It includes OPUS, our preferred codec for interoperability. The microphone is of reasonable quality for a cordless phone, however placement is very important for optimal results, and to avoid breath pops. Wifi devices only work reliably if you are in the same room as the wireless access point.

Using Grandstream WP820 for radio interviews with sip.audio

1. Connect the phone to a reliable wifi network. Navigate to 'Network Status' to discover its IP address.
2. Enter the IP address into a web browser on the same network. The default user and password are both 'Admin'.
3. From the menu, navigate to 'Account'. Set the fields as follows...
   Account Name: sip.audio
   SIP Server: sip.audio
   SIP User ID: SIP Account Username (For example, enter fmstation.grandstream for fmstation.grandstream@sip.audio)
   SIP Authentication Password: SIP Account Password
   Outbound Proxy: proxy.sip.audio
   NAT Traversal: STUN
4. Click 'Save'.
5. Click the 'Codec Settings' tab. Move your desired codecs (OPUS, and perhaps G722) to the 'Selected' column.
6. Click 'Save'.
7. From the menu, navigate to 'Phone Settings'. Set the fields as follows...
   STUN Server: stun.sip.audio
8. Click 'Save'. Click 'Apply'.

Help to keep the Knowledge Base accurate for the benefit of the worldwide community by contacting In:Quality with details of errors, omissions or updates. Raise a Ticket.