How to Choose IP Phones: Types, Codecs, and Deployment Tips

Choosing IP phones means matching the handset to the role: a simple SIP phone for common areas, a mid-range set for desks, and a conference or executive model for meeting rooms — with PoE, codec support, and easy provisioning decided up front so deployment stays cheap.

Definition: An IP phone (SIP phone) is a desk or wall handset that places calls over the IP network using the SIP protocol, instead of a legacy analog or digital line.

Phone Types by Role

Codecs and Audio Quality

• G.711: universal, higher bandwidth; safe default
• G.729: low bandwidth, good for constrained links
• Opus: adaptive, excellent over varied networks
• Match codecs across the system to avoid transcoding load on the PBX

PoE and Cabling

Most IP phones draw power over Ethernet (PoE), so confirm your switches supply enough PoE budget per port. This is why a phone rollout is mostly a switch question, not a wiring one — if you have PoE switches and structured cabling, desks are ready.

Provisioning at Scale

• Auto-provisioning: phones pull config from a server by MAC — no per-phone setup
• Central templates: push firmware and settings from one console
• Hot-desking: users log into any phone and get their extension

When a Softphone Replaces a Handset

Remote and hybrid staff often need no desk phone at all — a softphone on a laptop or the NewLync mobile app gives them an extension, headset audio, and presence. Reserve handsets for desks, reception, and meeting rooms where a physical device pays off.

How Newrock Fits

Newrock's IP-PBX and gateways interoperate with standards-based SIP phones, and NewLync clients cover users who need no handset. For mixed estates, that means buying handsets only where they add value and putting the rest on softphones.

FAQ

Do IP phones need new wiring?

Usually not. If your LAN has PoE switches and structured cabling, existing drops support IP phones; Wi-Fi handsets further reduce cabling.

Which codec should we standardize on?

G.711 for simplicity where bandwidth allows, G.729 for constrained links, Opus where the platform and network vary; keep the system consistent to avoid transcoding.

Can we avoid buying phones for every remote worker?

Yes. Softphones and mobile apps give remote staff a full extension without shipping hardware.

How hard is deploying many phones?

With auto-provisioning by MAC and central templates, a large rollout is configuration, not per-phone setup.

Bottom line: buy IP phones by role, standardize codecs and PoE, provision centrally, and let softphones cover remote users — the handset count drops and deployment gets simple.