It's a graphic of a router laying sideways with a picture of a phone on top of it. It has four dots on it's front face. Three of them are grouped to the left and the other is on the right. It has a symbolic wired connection coming out from underneath it.
This is a VOIP icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,900 icons, all in the same style and quality.