Let's say I want to set up my home with VoIP, no more than 4 phones. What's the cheapest yet still fairly reliable way to go for the phones themselves if I want to use Asterisk as a backend?

Hi Max speeds. Wired: 300mbps (cat 5e cable) Wifi 5ghz: 250mbps Wifi 2.4ghz: 120mbps (Tested on iPhone SE2020 and Lenovo Legion 5 with wifi6 compatible card) I have 900+ mbps down/100mbps up internet...

The router doesn't recognize my RSP Voip settings that Spintel provided. The phone field displays an X. Is there anything special you need to do with this router? Thankyou. SJose