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1. Open the phone's web interface, under the tab "Identity 1"
Enter the following data:
Display name: Your sip number (for example 111111) from personal account
Account: Your sip number (for example 111111) from personal account
Password: Your password of sip number from "SIP Connection" in personal account.
Registrar: sip.zadarma.com
Authentication Username: Your sip number (for example 111111) from personal account
Display name: Your internal PBX number (for example 1234-100) from personal account
Account: Your internal PBX number (for example 1234-100) from personal account
Password: Your password of internal PBX number from personal account
Registrar: pbx.zadarma.com
Account: Your internal PBX number (for example 1234-100) from personal account
2. Sometimes, due to incorrect NAT work on router, you might encounter problems with incoming calls. If this occurs, we recommend to enble STUN server.
Open "NAT"
STUN-server: stun.zadarma.com
3. Open "RTP" and set codecs. For example G711a and G711u
Click "Save"