We recommend that you configure your network router with Quality of Service (QoS) settings to ensure that your voice data is prioritised over other network traffic in your business. This is vital to ensure that other activity happening on your network doesn't impact call quality and stability. When your network isn't stable this can cause information to get lost in transit which in turn means gaps in conversations, reduced call quality and even call drops.
We don't recommend any specific models of router, but if your current model doesn't support QoS then please get in touch and we'll be happy to discuss this with you. Please refer to your router's instruction manual when applying the following settings and remember to always backup your current settings before making any changes. If you're not familiar with network management then please take advise from somebody who understands your network before applying any changes.
Our applications use WebRTC processes and therefore signalling for calls is perfomed over standard web ports (80 and 443). Unlike traditional VoIP solutions which often use SIP for signalling, there's no additional ports which typically need to be opened on your network.
Network Packet Prioritisation
All our call media UDP packets get tagged with prioritisation data. We use a DSCP tag with code 46 for Expedited Forwarding to identify these packets. Configure QoS settings on your router to ensure that Expedited Forwarding settings are honoured.
IP Addresses and UDP Ports
If you're not able prioritise using DSCP tags, or if your Internet Service Provider removes DSCP tags, then an alternative would be to prioritise using a combination of the IP addresses shown below along with our UDP port range.
The destination ports that our apps connect to are UDP ports within the range 49152 to 65535. You can set prioritisation rules in your QoS settings based on UDP packets to and from the IP addresses listed below.
Media Server IP Addresses
Configure your network speed
In order for the router to know when it's necessary to prioritise network traffic, it's often necessary to set maximum downstream/inbound and upstream/outbound throughput based on your fibre connection.
To do this you need to measure the actual speed of your connection. It's best to carry out these tests outside of normal office working hours when your network isn't being used by anybody else. Log into speedtest.net and launch 3 tests, each after the other and note down the downstream and upstream speeds from each test. Looking at your results, choose the lowest upstream and downstream result from the three tests.
With these settings you should be able to set the the WAN inbound or downstream bandwidth and WAN outbound or upstream bandwidth parameters according to your results.
If you've got any further questions around QoS or required network settings then please get in touch with our support team. Before contacting us, please also make sure that you're following the recommended settings and how to get the best out of your account.