How to configure your router for good call quality

Overview:

This article provides instructions on how to configure your router for high quality, Spoke Phone VoIP calling. It includes the following sections:

Firewall/Router Settings

  1. Your firewall/router should allow outgoing UDP and TCP (HTTPS) to the public internet from the devices that will be using Spoke Phone, and allow return traffic in response.
  2. Check to see if your router includes SIP Application Level Gateway (ALG) and/or Stateful Packet Inspection (SPI)
  3. Disable the SIP Application Level Gateway (ALG) function
  4. Disable the Stateful Packet Inspection (SPI) function
IMPORTANT
Most routers have both these functions turned ON by default.

If you do not
disable them, these functions can interfere with voice traffic and
intermittently block incoming calls from ringing on your phone.

More information on this step and instructions for specific router models can be
located here.

 

Manually configuring QoS

If you have a router that allows you to manually configure QoS and prioritize traffic to specific IP addresses and port ranges, use the following configuration.

If your router allows you to allocate a specific amount of bandwidth
to the prioritized traffic, allocate 100kb/s per expected concurrent call.

RTP Media (UDP) Traffic

This is the media channel and the most important to have committed bandwidth and QoS. Make sure that you set all applicable addresses that correspond to your location.

Spoke connects to these addresses using UDP, port range 10,000-20,000

Location Media Server IP Address Range CIDR:
Australia & New Zealand
  • 54.252.254.64 - 54.252.254.127
  • 3.104.90.0 - 3.104.90.255
  • 54.252.254.64/26
  • 3.104.90.0/24
USA & Canada
  • 54.172.60.0 - 54.172.61.255
  • 34.203.250.0 - 34.203.251.255
  • 54.244.51.0 - 54.244.51.255
  • 54.172.60.0/23
  • 34.203.250.0/23
  • 54.244.51.0/24
Singapore & South East Asia
  • 54.169.127.128 - 54.169.127.191
  • 3.1.77.0 - 3.1.77.255
  • 54.169.127.128/26
  • 3.1.77.0/24
Europe & South Africa
  • 54.171.127.192 - 54.171.127.255
  • 52.215.127.0 - 52.215.127.255
  • 35.156.191.128 - 35.156.191.255
  • 3.122.181.0 - 3.122.181.255
  • 54.171.127.192/26
  • 52.215.127.0/24
  • 35.156.191.128/25
  • 3.122.181.0/24
Japan
  • 54.65.63.192 - 54.65.63.255
  • 3.112.80.0 - 3.112.80.255
  • 54.65.63.192/26
  • 3.112.80.0/24

Different routers have different settings. The steps above are generally recommended configurations.

We recommend you engage your IT support professional to correctly configure any network or WiFi changes.

 

More Information

 

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