Prepare Your Network for Phones (line test, ports and protocols)
Table of Contents
Prerequisites Router Compatibility Router and Firewall Requirements Required Whitelist Addresses: TCP Ports: UDP Ports: SIP-ALG IssuesPrerequisites
- Active internet connection.
- Laptop/desktop connected to the network being tested.
- Access to the router/firewall on the network.
Router Compatibility
Visit our router compatibility chart to see if your router model has any known issues or special configuration instructions.
Readiness Tests
Ensure the readiness tests have been completed and the results are within the required Parameters:
- Line Test: https://linetest.iplogin.ca/
Your results may vary, but you should aim for the number of supported calls to exceed your location requirements, and for ping and jitter to be "Great" or "Okay."
Router and Firewall Requirements
- SIP-ALG should be disabled.
If the location has an aggressive firewall, please allow all inbound and outbound traffic for the following ports to the following addresses. Our services use DNS-SRV and have many IPs, so the least restrictions possible is important.
Required Whitelist Addresses:
- *.iplogin.ca (IPs available here)
- time.google.com
- pool.ntp.org
- dm.yealink.com
- 52.71.103.102
- 35.156.148.166
- 106.15.89.161
- 47.75.58.202
- 47.89.187.0
-
52.60.187.15 (added Feb 2026, apps.iplogin.ca)
TCP Ports:
- 80, 443, 8001 (for web UI)
- 5060 (SIP)
- 5061 (SIP TLS)
- 9002 (Web Socket used for features like Web Phone and Portal Video)
UDP Ports:
- 5060 (SIP)
- 20000-27999 (RTP Media) - Inbound RTP Media
SIP-ALG Issues
SIP-ALG is a protocol used in Hosted Voice telephony Services. Many routers have SIP-ALG enabled by default, which attempts to rewrite SIP packets with its own information. SIP-ALG can and usually does exist on routers/firewalls and modems or, in rare cases, a managed switch.
To operate as expected, you must disable this feature for any Hosted Voice service. Typical symptoms of SIP ALG being left turned on include:
- Phones dropping registration
- Calls go straight to voicemail for no known reason
- Calls are dropping after a set period of time
- Calls drop when trying to retrieve the call from the hold
- Calls drop when being transferred
- Calls are not being received (your phone doesn't ring)
- Unable to make outbound calls
- Calls with no audio & Calls with one-way audio
- Other extensions continue ringing after a call has been answered
- Call connectivity issues: a call is transferred, but the caller cannot hear the other person.