SIP Trunk Setup for Voyced – Grandstream IP PBX (UCM Series)
This guide explains how to set up a SIP trunk with Voyced on any Grandstream UCM IP PBX system (e.g. UCM6202, UCM6510). This setup supports both inbound and outbound calls.
What You’ll Need
Before you begin, make sure you have:
-
Admin access to the Grandstream UCM web interface
-
One or more extensions already created
-
Your Voyced SIP credentials:
| Field | Value |
|---|---|
| SIP Username | Your-Voyced-DID |
| SIP Password | YourServicePassword |
| SIP Server | sip.voyced.eu |
| SIP Port | 5060 |
| Transport Protocol | UDP |
| Codecs | alaw, ulaw, g729 |
Also ensure:
-
SIP (UDP 5060) and RTP (UDP 10000–20000) are open on your firewall
Step-by-Step Configuration
Step 1: Log in to Grandstream UCM
-
Open your browser and go to your UCM IP (e.g.
http://192.168.1.100) -
Log in as administrator
Step 2: Add SIP Trunk
-
Go to PBX > Basic/Call Routes > VoIP Trunks
-
Click Add SIP Trunk
General Settings:
-
Type: Register SIP Trunk
-
Provider Name:
Voyced -
Host Name/IP:
sip.voyced.eu -
Port:
5060 -
Transport:
UDP
Step 3: SIP Authentication
Fill in:
| Field | Value |
|---|---|
| SIP User ID | Your-Voyced-DID |
| Authenticate ID | Your-Voyced-DID |
| Password | YourServicePassword |
| From User | Your-Voyced-DID |
| Keep-Alive | ✅ Enabled |
| NAT Traversal | Keep as default or Yes if behind NAT |
Click Save, then Apply Changes
Step 4: Configure Codecs
-
In the same trunk config, scroll down to Codec Preference
-
Recommended order:
-
PCMA (alaw)
-
PCMU (ulaw)
-
G729
-
Step 5: Create Inbound Route
-
Go to PBX > Basic/Call Routes > Inbound Routes
-
Click Add
Fill in:
| Field | Value |
|---|---|
| DID Pattern | Your-Voyced-DID |
| Default Destination | Choose Extension, Ring Group, or IVR |
Click Save, then Apply Changes
Step 6: Create Outbound Route
-
Go to PBX > Basic/Call Routes > Outbound Routes
-
Click Add
General Settings:
-
Name:
voyced-out -
Pattern:
X.(matches all numbers)
Trunk Selection:
-
Select the Voyced SIP Trunk
Privilege Level:
-
Set to
Nationalor higher
Click Save, then Apply Changes
Step 7: Test & Troubleshoot
Test by:
-
Calling your Voyced number from a mobile to test inbound
-
Calling an external number from your extension to test outbound
Go to PBX > Maintenance > System Events or use System Status > SIP Registration to check registration and call logs.
For deeper logs:
-
Use SSH to log into the UCM
-
Run:
sip show peersorsip show registryfrom Asterisk CLI
Summary Table
| Setting | Value |
|---|---|
| SIP Server | sip.voyced.eu |
| SIP Port | 5060 |
| Username | Your-Voyced-DID |
| Password | YourServicePassword |
| Transport | UDP |
| Codec Priority | alaw, ulaw, g729 |
| NAT | Enabled (if behind NAT) |
| Trunk Type | Register SIP Trunk |
Last updated: 01/08/2025
© Voyced
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.
