New and Refurbished IP Telephones for Phone Systems
An IP telephone is a desk phone that connects to your office data network and registers to a business phone system, usually one from the same maker. Examples are Cisco phones on Cisco Unified Communications Manager, Avaya phones on IP Office and Mitel phones on MiVoice. This range covers new and refurbished IP telephones from Cisco, Avaya, Mitel, Polycom, Yealink, Siemens, Alcatel, Aastra, ShoreTel, Snom, Panasonic and Nortel.
Most buyers here replace faulty handsets or add extensions to a system they already run. If you use a hosted service or 3CX with open-standard phones, see SIP Phone. For a general overview, start with VoIP Phone.
Showing 1–12 of 843 resultsSorted by popularity
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Sale!
Mitel 5312
Original price was: £30.00.£25.00Current price is: £25.00. £20.83 Ex. VAT -
Avaya 9608
£30.00 £25.00 Ex. VAT -
Mitel 5320
£32.00 £26.67 Ex. VAT -
Polycom VVX310
£45.00 £37.50 Ex. VAT -
Cisco SPA504G
£37.80 £31.50 Ex. VAT -
Shoretel 230
£108.00 £90.00 Ex. VAT -
Avaya 1608-i IP Telephone
£32.00 £26.67 Ex. VAT -
Avaya 1608
£45.00 £37.50 Ex. VAT -
Mitel 5330 Backlit
£30.00 £25.00 Ex. VAT -
Avaya 9650
£30.00 £25.00 Ex. VAT -
Cisco 7942 G
£37.80 £31.50 Ex. VAT -
Avaya 9620
£32.40 £27.00 Ex. VAT
How to choose an IP telephone
Match your phone system
Start with the make and model of the system the phone will register to. A Cisco 7942G expects Cisco call control, an Avaya 9608 suits Avaya IP Office or Aura, and a Mitel 5330 needs a Mitel system. The model your site already uses is the simplest match.
Check protocol and firmware
Many IP telephones use their maker's own signalling protocol, such as Cisco SCCP or Siemens HFA. Some models can load SIP firmware instead, often with fewer features. If you plan to change firmware, check which features you would lose with your installer first.
Plan power for each phone
Most IP telephones take power from a PoE network switch through the data cable. If your switch has no PoE, each phone needs its own power supply or a PoE injector. Check the power option for your model.
Count the line keys
A one-line model such as the Cisco 7906G suits corridors and shared areas. Busier desks need more line keys, as on the Cisco 7962G. Reception desks often add a button module for extra keys.
Wireless IP telephones
If staff move around the site, a Wi-Fi handset such as the Cisco 7921G connects through your wireless network to the same call control. For DECT handsets, see Cordless Phone.
IP telephone examples by phone system
| Phone system | IP telephones in this range |
|---|---|
| Cisco Unified Communications Manager | Cisco 7905G, 7906G, 7942G, 7961G, 7962G, 7921G |
| Avaya IP Office and Aura | Avaya 9608, 1608-i, 1616-i |
| Mitel MiVoice | Mitel 5320, 5330, 5360, 6920 |
| Nortel or Avaya CS1000 and BCM | Nortel 1140E |
| Siemens HiPath and OpenScape Business (HFA) | Siemens OpenStage 40 |
| Panasonic KX-TDE, KX-NCP and KX-NS | Panasonic KX-NT551 |
| ShoreTel (now Mitel MiVoice Connect) | ShoreTel 230 |
| Open SIP: hosted VoIP and 3CX | Yealink T23G, T41P, T46S, T48S; Cisco SPA303 |
Questions
What is an IP telephone?
An IP telephone is a desk phone that sends calls as data over your office network. It plugs into a network switch, gets its settings from your phone system and usually takes power through the same cable. Each maker's system works most fully with its own IP telephone range.
Will any IP telephone work with my phone system?
No, most IP telephones only work fully with their own maker's platform. A Cisco 7962G expects Cisco call control and a Mitel 5330 expects a Mitel system. Send your system model through a quote request and we can check the match.
Are refurbished IP telephones a good fit for an existing system?
Yes, if your system is still in use, refurbished IP telephones let you add or replace handsets with the model your staff already know. Matching models keep the same keys, menus and feature codes across the office, so nobody has to learn a new phone.
Is the Avaya 1603SW an IP telephone?
Yes, the Avaya 1603SW is an entry-level IP telephone from the Avaya 1600 series, used on Avaya IP Office and Aura systems. Its sister models, the Avaya 1608-i and 1616-i, are in this range. For a 1603SW, ask us through the quote form.
Need a model that is not listed?
Send us the model numbers and quantities you need. We will reply with what we can supply.
Request a quote- Delivery: free next-day delivery to UK mainland addresses on in-stock items ordered by 3pm.
- Returns: within 14 days, see delivery information.
- Replacing old equipment? We buy used phones and systems and repair phones.
Buying refurbished phones and phone system hardware helps to reduce your impact on the environment, using less resources and reducing landfill. We can also recycle your old desk phones, back into the supply chain. Contact our team today and find out what help we can provide with your office telephones.