The rule of thumb is that each phone can take up to 0.1 MB/s bandwidth, so if you have 10 phones, all on a call at once, it would take up to 1 MB of bandwidth, plus you have to consider all the other internet traffic being used; for this reason, it’s hard to get a hard number that applies to everyone, it all depends on how many phones, and how much internet traffic is in use.
Ways to detect if you have poor internet speeds:
- Is your internet running slowly? Run a speed test at www.speedtest.net.
- Should be close to the advertised speed of your service package.
If it's possible, plug the computer you are using to run the test directly into your network through an ethernet drop. A direct internet connection yields the most accurate test results; wifi is always slower.
Try a ping test for packet loss. The terminal will populate with ICMP requests. If you're seeing many Request Timeouts, you need to contact your internet provider to see if there are known issues in your area.
- Open terminal (Press Command + Space to open Spotlight).
- Type “terminal” and press Enter (Return).
- Type in “ping 22.214.171.124” and press Enter (Return).
- Type "cmd" into your search bar or text box, depending on which version of Windows you have.
- Select the Command Prompt, Desktop apps.
- A black box with a flashing cursor will open; this is the Command Prompt. Type “ping” and then hit the Space bar on your keyboard.
- Type in the address you’d like to ping, and then hit the Enter key on your keyboard.
Ping is affected by things like distance, quality of service, type of connection, etc. Ping tests check the time it takes to send a message from one IP address to another. The smaller this time value is (usually in ms), the better. A good ping test is 5- 30ms, anything higher causes issues on anything web-related (phone calls, internet service).
- Ensure that your router is configured for QoS (Quality of Service) and traffic shaping if you have a router.
- Reboot your network.