What is IP Phone?
An IP phone (VoIP desk phone) connects to the internet or office network to place calls — from basic models to executive displays.
IP phone is the desk phone of the VoIP era: it plugs into your network (or WiFi) and places calls over the internet instead of a copper line. Ranges run from basic lobby models through executive color touchscreens.
Buying context
Three things to check before buying hardware:
- Certification — each UCaaS platform certifies specific models (Poly, Yealink, Cisco). A “SIP phone” works broadly but lacks platform button integration; certified models are worth it for everyday users.
- BYOD policies — many providers re-provision existing compatible SIP phones free or cheap; OnSip class providers built reputations on it.
- Bundles — most providers include or deeply discount phones at contract commitment (see the negotiation guide). Paying full retail for handsets is a rookie line item.