âś… Compatible TP-Link Models
Series | Popular Models | Notes |
|---|---|---|
Archer Series | Archer VR900, VR2600, VR2100, VR400, VR600, AX series | SIP ALG under Advanced > NAT Forwarding > ALG |
Deco Mesh | All Deco models (M4, M5, X20, X60, X68, etc.) | Configure via Deco App: Advanced > Acceleration/ASIP LAG |
VR Series | VR900, VR600, VR400, VR200, VR2100, VX230v | Built-in VoIP features, SIP account configuration available |
TD Series | TD-W8961ND, TD-8817, TD-W8951ND, TD-W9960v | xDSL modem routers, SIP ALG in Advanced > NAT Forwarding |
Note: TP-Link routers are among the most popular in Canada, widely available at Best Buy, Amazon.ca, Canada Computers, and Memory Express . The Archer series is the best-selling consumer router line in Canada.
Introduction
This guide provides our recommended configuration for TP-Link routers (Archer, Deco, VR, and TD series) to ensure optimal VoIP performance.
Provider-Specific Requirements
Important: You need to allow traffic from the following IP range through your firewall.
Requirement | Specification |
|---|---|
IP Range to Whitelist |
|
Ports to Open | UDP |
SIP ALG | MUST BE DISABLED |
Accessing Your TP-Link Router
Method | Instructions |
|---|---|
Web Browser (Routers) | Open browser to |
Deco App (Mesh) | Open TP-Link Deco app on your mobile device. Log in with your TP-Link account and ensure you're connected to the correct Deco site. |
1. Disable SIP ALG (Critical)
Critical: SIP ALG is enabled by default on TP-Link routers and MUST be disabled for proper VoIP operation.
For Archer / VR / TD Series (Web Interface)
Step | Action | Details |
|---|---|---|
1 | Log in to web interface |
|
2 | Navigate to Advanced | Click Advanced tab at the top |
3 | Go to NAT Forwarding > ALG | Advanced > NAT Forwarding > ALG |
4 | Disable SIP ALG | Uncheck the box next to SIP |
5 | Save | Click Save to apply changes |
For Deco Mesh Systems (App)
Step | Action | Details |
|---|---|---|
1 | Open Deco app | Launch TP-Link Deco app and log in |
2 | Go to Advanced settings | Navigate to More > Advanced or Advanced settings for your site |
3 | Disable Acceleration | Find Acceleration, ASIP LAG, or QoS/Optimization and turn it OFF |
4 | Save | Tap Save or Apply to confirm |
2. Configure DNS (Recommended)
Polycom and other VoIP devices are sensitive to DNS issues. Manually setting reliable DNS servers can prevent registration failures.
Navigation | Advanced > Network > LAN Settings |
|---|---|
Locate Primary DNS Server and Secondary DNS Server fields | |
Enter recommended DNS: | |
Primary: |
3. Configure QoS (Quality of Service)
QoS ensures voice traffic is prioritized over other data, improving call quality.
Navigation | Advanced > QoS |
|---|---|
Check Enable to turn on QoS | |
Enter your Upload Bandwidth (use ~95% of your ISP-provided upload speed) | |
Check VoIP QoS to prioritize voice traffic | |
Click Save to apply |
4. Port Forwarding (For VoIP Devices)
Port forwarding allows external traffic to reach your VoIP device or ATA.
For Archer / VR / TD Series
Navigation | Advanced > NAT Forwarding > Virtual Servers or Port Forwarding |
|---|---|
Click Add to create a new rule | |
Enter your VoIP device's Internal IP Address (use DHCP reservation) | |
Enter the required ports: | |
- UDP 5060-5061 (SIP) |
For Deco Mesh Systems
Navigation | Open Deco app > More > Advanced > Port Forwarding |
|---|---|
Tap Add to create a new rule | |
Enter Service Name (e.g., "VoIP"), Internal IP, and required ports | |
Tap Save and verify the rule appears in the list |
5. Address Reservation (Static IP)
Ensure your VoIP device always gets the same IP address for port forwarding to work reliably.
Device Type | Router (Archer/VR/TD) | Deco Mesh |
|---|---|---|
Navigation | Advanced > Network > DHCP Server > Address Reservation | Deco app > More > Advanced > DHCP > Address Reservation |
6. For VR Series with Built-in VoIP
Some TP-Link VR series routers (VR900, VR600, VX230v) have built-in VoIP ports. Use these steps to configure your SIP account.
Step | Action | Details |
|---|---|---|
1 | Go to Voice Settings | Advanced > Telephony > Voice or SIP Account |
2 | Add SIP Account | Click Add and enter your provider's SIP settings |
3 | Configure SIP Settings | Set Registrar Address, Authentication ID, and SIP Password |
4 | Advanced Settings | Uncheck "Register via Outbound Proxy" if not required |
5 | Set WAN Interface | Go to Voice > Advanced > SIP Advanced and set Bound Interface to Any_WAN |
7. Wi-Fi Calling Configuration
If Wi-Fi calling isn't working on your TP-Link router, additional ports need to be opened.
Required Ports | UDP 500 (IKE2) |
|---|---|
UDP 4500 (IPsec NAT Traversal) | |
Use Port Forwarding or Port Triggering to open these ports for your smartphone's IP |
8. Provider IP Whitelist (Port Forwarding)
Create a port forwarding rule to allow traffic from our servers to reach your VoIP device.
Field | Value |
|---|---|
Service Name | VoIP Provider |
External Port |
|
Internal IP | Your VoIP device's IP address (use DHCP reservation) |
Protocol | UDP |
Note: The
/27notation includes 32 IP addresses ranging from64.26.133.64to64.26.133.95.
9. Verification & Testing
NAT Test
After completing the above configurations, test your network to verify SIP compatibility and performance
Test | Details |
|---|---|
Network Assessment Tool | Run the NAT test provided by your VoIP provider |
Test Call | Make test calls to verify two-way audio and feature functionality |
SIP Registration | Confirm your VoIP device shows as "Registered" or "Online" |
🚨 Troubleshooting
Issue | Likely Cause | Solution |
|---|---|---|
One-way audio | SIP ALG still enabled | Double-check SIP ALG is disabled in Advanced > NAT Forwarding > ALG |
Wi-Fi calling not working | Ports 500/4500 not forwarded | Forward UDP 500 and 4500 to your smartphone's IP |
Registration fails | DNS issues | Set DNS to 8.8.8.8 / 8.8.4.4 |
Port forwarding not working | Device IP changed | Use Address Reservation for static IP |
Poor call quality | No QoS configured | Enable QoS and prioritize VoIP traffic |
Outbound Proxy issues | Incorrect SIP settings | Uncheck "Register via Outbound Proxy" if not required |
âś… Configuration Checklist
# | Task |
|---|---|
1 | SIP ALG disabled in Advanced > NAT Forwarding > ALG |
2 | DNS servers configured (8.8.8.8 / 8.8.4.4) |
3 | QoS enabled with VoIP priority |
4 | Port forwarding configured for SIP (5060-5061) and RTP (10000-20000) |
5 | Address reservation set for VoIP device |
6 | For VR series: SIP account configured with correct provider settings |
7 | Wi-Fi calling ports forwarded if needed (UDP 500 & 4500) |
8 | Test call successful with two-way audio |
🛠️ Official TP-Link Tutorials
For visual guidance on configuring your TP-Link router, visit the official TP-Link support page:
đź”— TP-Link Configuration Guide