This guide explains when and how to use a third-party SIP provider — such as Wavix or Zadarma — for telephony setup. It covers provider compatibility requirements, credential collection, voice connector configuration, and SMS provider setup. Use this path when neither Twilio nor Telnyx is available for your target country.
🗒️ NOTE
Complete the telephony setup overview to confirm that neither Twilio nor Telnyx is available for your target country.
When to use a third-party SIP provider
A third-party SIP provider is required when the country coverage tool shows that neither primary provider supports your target country.
Condition | Detail |
Twilio unavailable | No Twilio coverage for the target country |
Telnyx unavailable | No Telnyx coverage for the target country |
Alternative | Wavix and Zadarma are tested and confirmed compatible with Newo |
Other providers | Other SIP providers may work but are not guaranteed to be compatible |
Verify provider compatibility
Before purchasing numbers from a third-party provider, confirm that the provider meets all of the following requirements.
❗❗ IMPORTANT
Newo only supports SIP endpoint registration — not SIP Trunking. Verify this with your provider before purchasing.
Requirement | Detail |
Connectivity type | SIP Registration ONLY (not SIP Trunking) |
Transport protocol | TCP (preferred) or TLS |
Standard ports | TCP/UDP 5060, TLS 5061 |
SIP credentials | Username + Password required |
Outbound SIP proxy | FQDN required |
SMS support | Confirm SMS capability at time of purchase |
Compliance/bundle | A compliance bundle or equivalent must be available for the target country |
Collect the required SIP credentials
After purchasing a number, gather the following credentials from your SIP provider. You will need all five values to configure the voice connector.
# | Credential | Description |
1 | Outbound SIP proxy | The SIP server FQDN including port (e.g. |
2 | Transport type | TCP or TLS |
3 | Port number | Typically |
4 | Username / Authentication ID | The SIP account username or authentication ID |
5 | Password | The SIP account password |
🗒️ NOTE
After collecting the credentials, you can either pass all five values to the Newo implementation team to complete connector setup on your behalf, or proceed to configure the voice connector yourself using the steps below. Inbound calling configuration will be validated by Newo as part of agent turn-up.
Configure the voice connector
Open the Builder.
Navigate to Integrations.
Locate
newo_voice_connectorand click the three-dot menu.Select Edit Settings.
Set the Provider field to
sip.Enter the SIP credentials in the following fields:
Field | Value |
SIP caller id | The phone number in E.164 format (e.g. |
SIP connection type |
|
SIP hostname | The outbound SIP proxy FQDN with port (e.g. |
SIP password | Your SIP account password |
SIP username | Your SIP account username or authentication ID |
Click Save.
Click Publish All.
For network configuration, IP whitelisting, and security recommendations, see Connect a SIP provider.
Set the SMS provider attribute
Navigate to Attributes in the Builder.
Search for
sms_provider.Change the value from
twilio_messengertosip.Click Save.
Click Publish All.
⚠️ CAUTION
If sip is selected as the SMS provider but SIP is not properly configured in the voice connector, the system will automatically fall back to twilio_messenger. Verify the voice connector is saved and published before testing.
🗒️ NOTE
Voice and SMS are both routed through the SIP provider. No additional connector configuration is required — the same SIP credentials handle both channels.
Next step
Test and validate that voice and SMS are working correctly.