SIP Trunk Setup for Wildix PBX

Use Voyced as an external SIP provider

This guide explains how to connect your Voyced telephone number and SIP trunk to Wildix PBX, allowing your business to make and receive telephone calls through Voyced.

Wildix supports external SIP providers using standard SIP registration with a username, password and SIP server.

This manual covers Wildix Management System (WMS) versions 6 and 7, including hardware, virtual and cloud-based Wildix PBX installations.

What You’ll Need

Before you begin, make sure you have:

• Administrator access to your Wildix PBX

• A working Wildix installation

• At least one configured user and telephone

• Permission to manage SIP trunks and dialplans

• An active Voyced telephone number

• Your Voyced SIP details:

  • Account / telephone number: Your-Voyced-DID

  • Service password: YourServicePassword

  • SIP server: sip.voyced.eu

Requirements Before You Begin

• Your Voyced account must be active.

• Your account must have sufficient calling credit and simultaneous call capacity.

• Your Wildix PBX must have a working internet connection.

• SIP signalling uses UDP port 5060.

• Your firewall must allow the required SIP and RTP traffic.

• Disable SIP ALG on your router or firewall.

• Use full international telephone numbers without a leading + when sending calls to Voyced.

• Recommended codecs:

  • PCMA / G.711 A-law

  • PCMU / G.711 μ-law

Wildix uses separate dialplan procedures for incoming and outgoing calls.

By default:

• main handles incoming calls from SIP trunks.

• users handles calls initiated by internal users.

We will configure both procedures to work with Voyced.

SIP Trunk Setup Steps

1. Log in to Wildix

1. Open your Wildix PBX administration interface.

2. Log in using your administrator credentials.

3. Open WMS (Wildix Management System).

4. Navigate to Trunks.

5. Locate the SIP section.

6. Click the + button to add a new SIP trunk.

The SIP trunk configuration window will open.

Wildix supports custom SIP providers, so Voyced does not need to appear in a predefined provider list.

2. Create the Voyced SIP Trunk

Enter the following details:

Replace the placeholders with your actual Voyced service details.

The Auth Login identifies your Voyced account during SIP authentication.

The From User identifies your account in outgoing SIP messages.

The From Domain specifies the SIP domain used in registration and outgoing calls.

For the SIP server, use:

sip.voyced.eu

Keep this hostname rather than entering a numerical IP address.

Voyced uses this hostname to direct connections to the appropriate server.

3. Configure the Trunk's General Settings

Complete the remaining fields:

The Dialplan field determines which procedure handles incoming calls from the trunk.

For the initial setup, select:

main

The Tone Zone controls local telephone tones.

The Country Code helps Wildix recognise national and international number formats.

Enter the country code for your installation, without a leading +.

For example:

Enable Keep-Alive to help maintain SIP connectivity.

Enable Registration so Wildix registers with Voyced using the configured credentials.

Leave Registration Proxy empty for the standard connection.

4. Configure SIP Registration

With Enable Registration selected, Wildix sends SIP REGISTER requests to Voyced.

The registration uses:

Wildix uses the authentication details entered in the trunk's main settings.

A separate registration proxy is not required.

After registration succeeds, Wildix will periodically renew the registration.

5. Configure Advanced SIP Settings

Expand the Advanced section.

Enter:

The Transport setting determines how SIP signalling reaches Voyced.

Select UDP.

The DTMF Mode controls telephone keypad signalling.

Select RFC2833 for compatibility with IVR systems, voicemail and other telephone services.

The Rport setting helps SIP responses reach the correct network address.

Start with the default INVITE option.

Wildix normally uses a registration expiry of 600 seconds.

Keep this default unless the SIP server requests a different interval.

If Wildix shows additional advanced settings, leave them at their defaults for the initial connection.

6. Configure Audio Codecs

Still under Advanced, locate Audio Codecs.

Enable:

1. G.711 A-law / alaw

2. G.711 μ-law / ulaw

Recommended configuration:

Set the packet time to:

20 ms

Wildix uses 20 milliseconds as the default audio packet duration.

The default codec preference in current Wildix versions already places A-law before μ-law.

If you need to change codec priority for a specific call, Wildix also supports codec selection through the Dialplan Set → Codec application.

For a normal Voyced trunk, the default A-law and μ-law priority is suitable.

7. Save and Verify SIP Registration

After entering the trunk settings:

1. Click Save.

2. Return to WMS → Trunks.

3. Locate Voyced SIP Trunk.

4. Check its registration status.

Wildix displays registration status using coloured indicators.

A green indicator means the SIP registration is active.

If the status remains grey, review:

• SIP server

• Authentication username

• Password

• SIP port

• Registration settings

• Network connectivity

You may hover over the registration indicator for additional connection information.

Successful registration confirms Wildix has authenticated with Voyced.

Incoming and outgoing call routing must still be configured.

8. Configure an Inbound Dialplan

Wildix normally uses the main dialplan procedure for incoming calls.

To configure your Voyced number:

1. Navigate to WMS → Dialplan.

2. Open the main procedure.

3. Click Add number.

4. Enter your Voyced telephone number.

Example:

Your-Voyced-DID

Replace this placeholder with your actual telephone number, including the country code.

For example:

442012345678

The called number must match the number received from Voyced.

Save the new dialplan entry.

If the main procedure already contains other incoming telephone numbers, leave those entries unchanged.

9. Route Inbound Calls to an Extension

Under the new Voyced number entry:

1. Click Add application.

2. Select Dial the phone.

3. Locate the Number setting.

4. Click Set.

5. Select Custom.

6. Enter the extension that should receive incoming calls.

Example:

This configuration routes incoming calls to extension 100.

The expected call flow is:

Voyced Telephone Number
        |
        v
Wildix SIP Trunk
        |
        v
Extension 100

Click Save.

Make sure extension 100 exists and has a working telephone assigned.

10. Configure an Inbound Call Group

If several users should receive incoming calls, create a call group.

1. Navigate to WMS → Dialplan → Call groups.

2. Click + to create a new group.

3. Enter a group name.

4. Add the required users.

5. Click Save.

Example:

Next:

1. Return to WMS → Dialplan.

2. Open the main procedure.

3. Select your Voyced telephone number.

4. Add the Call group application.

5. Select Voyced Reception.

6. Configure the timeout.

7. Save.

Wildix offers several call distribution strategies, including simultaneous ringing and distribution between available group members.

Choose the strategy that matches your business requirements.

If you use a call group, replace the earlier Dial the phone action or arrange the applications in the required order.

11. Configure an IVR for Incoming Calls

Wildix also supports IVR menus.

An IVR lets callers choose a destination using their telephone keypad.

For example:

• Press 1 for Sales

• Press 2 for Support

• Press 3 for Reception

To use an IVR:

1. Navigate to WMS → Dialplan.

2. Open the IVR configuration section.

3. Create your IVR menu.

4. Configure the recorded message.

5. Assign the required destinations.

6. Save the IVR.

Return to the main dialplan procedure.

Select your Voyced number and add the IVR application.

Choose the IVR you created.

Save your changes.

For reliable keypad operation, keep DTMF signalling set to RFC2833 in the Voyced trunk settings.

12. Configure Outbound Calling

Wildix normally uses the users dialplan procedure for outbound calls.

To configure outbound calling through Voyced:

1. Navigate to WMS → Dialplan.

2. Open the users procedure.

3. Add a new called-number pattern.

4. Configure an application to route the call through Voyced.

For this example, users dial 9 before an international telephone number.

Enter the called-number pattern:

9X.

This pattern matches numbers beginning with 9, followed by additional digits.

Example:

9442012345678

The first 9 is the internal outgoing-call prefix.

Before sending the call to Voyced, Wildix must remove this prefix.

13. Configure the Outbound Trunk Application

Under the 9X. dialplan entry:

1. Click Add application.

2. Select Dial the trunk.

3. Under Select trunk, choose Voyced.

4. Locate Set Number.

5. Click Set.

6. Select the option to remove digits from the beginning of the called number.

7. Set the number of digits to remove to 1.

Example:

With this configuration, the user dials:

9442012345678

Wildix removes the leading 9 and sends:

442012345678

to Voyced.

The number sent to Voyced must be in full international format without a leading +.

Click Save.

If your organisation already uses another outgoing-call prefix, adjust the example to match your existing dialplan.

Keep existing emergency and special-service routes intact.

14. Configure Outbound Caller ID

Your outgoing calls should present an authorised telephone number.

Wildix supports caller ID settings through user accounts and dialplan applications.

Option 1: Use the User's Office Number

1. Navigate to WMS → Users.

2. Open the required user.

3. Locate the Office number field.

4. Enter the authorised telephone number.

5. Save.

Example:

Wildix uses this telephone number for outgoing caller identification where permitted by the trunk configuration.

Option 2: Set Caller ID in the Dialplan

For a shared company telephone number:

1. Open WMS → Dialplan.

2. Select the users procedure.

3. Open your Voyced outbound rule.

4. Add the Set application before Dial the trunk.

5. Select Caller number on trunk.

6. Enter your authorised Voyced number.

7. Save.

Example:

Your-Voyced-DID

Replace the placeholder with your actual telephone number.

Only use numbers authorised for outbound presentation on your Voyced account.

15. Assign the Outbound Dialplan to Users

The outbound dialplan must be assigned to the users making calls.

1. Navigate to WMS → Users.

2. Select the required user.

3. Locate the Dialplan field.

4. Select users.

5. Save.

Repeat for other users who should place calls through Voyced.

If your organisation already uses a custom dialplan procedure, add the Voyced outbound rule to the appropriate procedure instead.

Do not replace existing dialplan assignments without checking which services and routes they contain.

16. Configure Multiple Voyced Numbers

If you have several Voyced telephone numbers, they may share the same SIP trunk when delivered through one account.

To configure additional numbers:

1. Navigate to WMS → Dialplan.

2. Open the main procedure.

3. Click Add number.

4. Enter the additional Voyced DID.

5. Select the required destination.

6. Save.

Example:

Use the complete international number for every DID.

If additional numbers have separate SIP usernames and passwords, create separate SIP trunks as required.

17. Configure Firewall and NAT

Your Wildix PBX must communicate with:

sip.voyced.eu

Recommended network settings:

Wildix uses different RTP ranges depending on the installation type.

Typical ranges are:

These are typical ranges. Your installed configuration determines the actual ports.

For hardware and virtual installations, check:

WMS → Settings → PBX → SIP-RTP

Confirm the configured RTP start and end ports.

If your PBX is behind NAT, ensure the correct external IP address is configured.

Where available, use the automatic external IP detection feature.

Make sure your firewall permits the required SIP and RTP traffic.

Testing Your Setup

Registration Test

1. Open WMS → Trunks.

2. Locate Voyced SIP Trunk.

3. Check the registration indicator.

Expected result:

Green: Registered

If the indicator remains grey, check your SIP account settings.

Inbound Test

1. Call your Voyced telephone number from an external mobile telephone.

2. Confirm Wildix receives the call.

3. Check the correct dialplan entry matches.

4. Verify the configured extension, group or IVR receives the call.

5. Answer the call.

6. Check audio in both directions.

For multiple Voyced telephone numbers, test each DID separately.

Outbound Test

1. Pick up a telephone registered to Wildix.

2. Dial 9 followed by the full international telephone number.

3. Confirm the call routes through Voyced.

4. Verify the destination telephone rings.

5. Check two-way audio.

6. Confirm the correct caller ID appears.

Example:

9442012345678

Wildix should send:

442012345678

to Voyced.

Troubleshooting

SIP Registration Fails

Check:

• SIP server is sip.voyced.eu

• Auth Login is Your-Voyced-DID

• Password is YourServicePassword

• From User is correct

• From Domain is sip.voyced.eu

• Enable Registration is selected

• Transport is UDP

• Port is 5060

• DNS resolution works

Review the registration status in WMS → Trunks.

401 or 407 Error

These responses indicate SIP authentication is required.

An initial challenge is normal.

If registration repeatedly fails, check:

• Authentication username

• Service password

• SIP authentication realm

• Subsequent authenticated SIP requests

403 Error

Check:

• Voyced account status

• Authentication details

• Outbound calling permissions

• Caller ID authorisation

• Account restrictions

404 Error

Check:

• Destination telephone number

• International number format

• Dialplan matching

• Prefix removal

• SIP Request-URI

• Which system returned the error

For example:

Incorrect number sent to Voyced:

9442012345678

Correct number sent to Voyced:

442012345678

The outbound dialplan must remove the leading 9.

Incoming Calls Do Not Ring

Check:

• SIP registration

• Trunk Dialplan

• Called-number matching

• Inbound destination

• User availability

• Call group configuration

• Incoming SIP number format

Confirm the trunk uses the main procedure or the correct custom inbound dialplan.

If the received number differs from the configured DID, adjust the dialplan matching rule.

Outbound Calls Fail

Check:

• SIP registration

• users dialplan

• Outbound number pattern

• Selected trunk

• Prefix removal

• Caller ID

• Account credit

• Simultaneous call capacity

Users Cannot Make Outbound Calls

Check:

• User dialplan assignment

• 9X. matching rule

• Dial the trunk application

• Outbound calling permissions

• Existing ACL restrictions

Wildix uses ACL rules and call classes to manage permissions.

Make sure the relevant users have permission to place the required external calls.

One-Way Audio

Check:

• RTP port range

• Firewall configuration

• NAT settings

• External IP address

• Codec negotiation

• SDP media information

• SIP ALG

Calls Disconnect After Approximately 30 Seconds

Check:

• SIP ALG

• NAT handling

• SIP ACK delivery

• Rport setting

• Firewall timeouts

If the PBX is behind NAT, changing Rport to REGISTER/INVITE is not always the correct solution.

Wildix documents scenarios where this setting causes calls to disconnect after approximately 30 seconds.

Start with the default INVITE setting.

Trunk Shows Not Registered

1. Open WMS → Trunks.

2. Select the Voyced trunk.

3. Review the authentication details.

4. Confirm the SIP server and port.

5. Check network connectivity.

6. Save any corrected settings.

Wait for the registration status to update.

Registration Works but Calls Still Fail

A successful SIP registration confirms the account is authenticated.

It does not confirm correct call routing.

Check these areas separately:

1. Incoming DID matching

2. Outbound dialplan

3. Number formatting

4. Caller ID

5. Audio connectivity

Reviewing Call Logs

Wildix includes built-in call diagnostics.

For a basic call trace:

1. Open WMS.

2. Click Debug in the upper menu.

3. Review Active Calls or History.

4. Select the failed call.

5. Review the call details.

For more detailed SIP diagnostics, open Diagnostics Hub from the WMS menu.

Depending on your WMS version, select Autotrace and enable SIP signalling capture.

Make one test call, then review the captured SIP messages.

Look for:

• REGISTER

• INVITE

• Request-URI

• From

• To

• SIP response code

• SDP media information

Disable detailed tracing after troubleshooting.

Final Tips

• Always use your Voyced SIP account credentials.

• Keep the SIP server set to sip.voyced.eu.

• Use Your-Voyced-DID as the SIP authentication username.

• Use YourServicePassword as the SIP password.

• Enable SIP registration.

• Use UDP port 5060 for SIP signalling.

• Use G.711 A-law and μ-law for audio compatibility.

• Use the main dialplan for incoming calls.

• Use the users dialplan, or your existing outbound procedure, for outgoing calls.

• Configure the correct DID matching rules.

• Remove any external access prefix before sending calls to Voyced.

• Use full international telephone numbers without a leading +.

• Present an authorised outbound caller ID.

• Check firewall and NAT settings when required.

• Test SIP registration, inbound and outbound calling separately.

Wildix supports external SIP trunks using standard registration and authentication, making it suitable for connecting to Voyced.

Once registration, incoming call routing and outbound dialplan rules are configured correctly, your business will be able to make and receive telephone calls using Voyced.

Last updated: 27/10/2026

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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.