SIP Trunk Setup for Snom C520
Setting up your device with Voyced as your Business VoIP Provider.
What You’ll Need
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Snom C520 conference phone connected to your network
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Voyced account details:
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Account / telephone number:
Your-Voyced-DID -
Service password:
YourServicePassword -
SIP server:
sip.voyced.eu
-
-
Access to device web UI or menu
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Admin login
Requirements Before You Begin
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Latest firmware installed
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SIP UDP and RTP UDP ports open in firewall/router
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SIP ALG disabled
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Voyced account tested on softphone
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Change default admin password
SIP Trunk Setup Steps
1. Access Web Interface
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On the phone, go to Menu → Information → System Info for IP address
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Enter IP in browser, log in as admin
2. Configure SIP Account
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Identity 1 → Login
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Display Name: Your Business Name or
Your-Voyced-DID -
Account:
Your-Voyced-DID -
Password:
YourServicePassword -
Registrar:
sip.voyced.eu -
Port: 5060, UDP
3. Advanced Settings
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Caller ID Header:
PAI-RPID-F -
Voicemail Number:
1233 -
Voicemail Subscribe: Enabled
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STUN: Disabled
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DNS Mode: With fallback logic
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NAT Keep Alive: Enabled
4. Codec Settings
List in this priority order (from higher quality to lower):
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G722 **
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G723 **
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G726 **
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PCMU (u-law)
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PCMA (a-law)
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G711
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G729
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Opus **
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iLBC **
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AMR-WB **
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AMR **
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GSM
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Any other codecs your device supports
Codecs marked with ** may be supported but aren't guaranteed to work across all global routes.
If you have audio issues, switch back to G711 or G729 and test again.
Testing
-
Save and reboot
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Confirm Registered status
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Test inbound/outbound calls
Last updated: 01/08/2025
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All information provided is copyrighted and purely informative in nature. It is maintained by Voyced with the greatest of care using reliable sources only.
Given the fast evolution of the telecom sector, Voyced does not offer any guarantee about the accuracy and completeness of the information offered.
We explicitly do not give anyone permission to use this information in any other way than to inform themselves about what (legal) requirements there may be and they need to comply with when registering Services and/or DIDs with Voyced.
