IP Phone Buying Guide for UAE Offices: Desk, Wi-Fi and DECT, and What the Specs Mean
Phones are where a phone-system budget quietly doubles, because most quotes put the same handset on every desk. This guide maps phone types to the people who use them, translates the datasheet line by line, and explains the one specification that decides whether your handsets survive your next PBX: SIP support.
- Four types of phone, and who needs which
- SIP compatible, or locked to one brand?
- The datasheet, translated
- PoE: why it matters more than it sounds
- DECT: range, handsets per base, multi-cell
- Wi-Fi phones: when they make sense
- Hotel, clinic and warehouse phones
- A worked example: 40-seat office
- Before you order
Four types of phone, and who needs which
Almost every UAE office we quote needs a mix. Matching the type to the role is what keeps the budget sane.
| Type | Right for | Watch out for |
|---|---|---|
| Wired desk phone (PoE) | Anyone with a fixed desk: sales, accounts, reception, back office, front desk | Needs a network point and a PoE switch |
| DECT cordless | Warehouse, housekeeping, clinics, showrooms, workshop, anyone who walks | Coverage planning; one base is not always enough |
| Wi-Fi phone | Rooms and desks with no data cabling, temporary offices, villas | Depends on your wireless network; battery on cordless models |
| Softphone / mobile app | Field staff, directors, remote workers, branch managers | No physical phone for visitors or shared positions |
A shared position, a meeting room, a reception desk or a security cabin always needs a physical phone. An employee who is rarely at a desk usually does not.
SIP compatible, or locked to one brand?
This is the one specification that decides whether the handsets you buy today survive the phone system you buy in five years.
SIP is the open standard for IP telephony. A SIP phone registers to any SIP-based system: Yeastar, Grandstream, 3CX, Asterisk, FreePBX, or a hosted service. Change the PBX, reprovision the phones, keep going.
Proprietary handsets speak a private protocol and register only to their own vendor platform. They are often excellent phones. They are also a commitment: the day you change the system, every one of them becomes scrap, and until then you buy accessories, expansion modules and spares from one price list.
A practical note on mixed estates: some vendors ship the same handset in two firmware versions, one proprietary and one SIP. If a corporate standard requires that brand, insist the quote states the SIP firmware. We supply both and will tell you which is which before you order.
The datasheet, translated
| Specification | What it actually means for you |
|---|---|
| SIP accounts / lines | How many different numbers or identities the phone can register. Two is plenty for a normal desk; reception or a manager covering several departments may need more. |
| Line keys / programmable keys | Physical buttons for speed dial, a colleague’s extension, a door opener, a queue login. More keys matter only for people who watch other people’s calls. |
| BLF (busy lamp field) | A key that glows when a colleague is on a call, and answers their ringing phone with one press. This is what a receptionist actually needs, not a bigger screen. |
| Gigabit dual port | Two network sockets: wall to phone, phone to PC. Gigabit keeps the computer at full speed; 100 Mbps models throttle it. |
| PoE (802.3af / at) | Powered by the network cable. See the next section; almost always the right choice. |
| HD audio / wideband (G.722) and Opus | Codecs. G.722 is the widely supported HD codec and makes internal calls noticeably clearer; Opus handles poor networks better. Calls to mobiles and landlines drop to narrowband regardless, so judge HD on internal quality. |
| EHS / headset port | EHS lets a wireless headset answer and end calls from the headset itself. Anyone on calls all day wants a proper headset port (RJ9 or USB) rather than the handset speaker. |
| Expansion module support | An add-on panel of extra BLF keys for reception. Cheaper than buying a flagship phone for the keys. |
| Bluetooth / Wi-Fi built in | Convenient for wireless headsets, or for a desk with no data point. Adds cost: buy it where it is used. |
| Colour screen | Nice, rarely decisive. It matters where staff scroll directories or use the phone menu constantly. |
| Provisioning (auto-provision / RPS) | The phone downloads its settings on first boot instead of being configured by hand. Essential on any deployment above ten phones, and the reason our installs are fast. |
| Power adapter included? | Often not, because PoE is assumed. Check the line item so you are not buying 40 adapters at the last minute. |
PoE: why it matters more than it sounds
Power over Ethernet means the network switch feeds power down the same cable that carries the call. Four practical consequences:
- One cable per desk. No adapter, no second socket under the table, nothing to lose during an office move.
- One UPS protects every phone. Put the switch and the PBX on a UPS and the whole phone system rides through a power dip. With adapters at each desk, that is impossible.
- Cleaner moves. Unplug the phone, plug it in at the new desk; the number follows it.
- Sizing matters. Count phones at about 7 W each, add cameras and access points if they share the switch, then add 30 percent headroom. A 24-port switch with a 195 W budget comfortably runs 24 phones; the same switch also feeding eight Wi-Fi 6 access points does not.
DECT: range, handsets per base, and when to go multi-cell
DECT is a dedicated cordless standard for voice, operating in its own frequency band (1880 to 1900 MHz in this region), separate from Wi-Fi. That separation is the point: your calls do not compete with the guest network or the warehouse scanners.
- Range. Roughly 50 m indoors and up to 300 m outdoors per base, much less through concrete cores, cold rooms and steel racking.
- Single-cell. A base such as the Yealink W70B supports up to 10 handsets and 10 simultaneous calls. Right for a clinic, a small warehouse, a showroom, a restaurant.
- Multi-cell. The W80 and W90 systems chain several bases so a handset roams across floors or buildings without dropping the call. This is what hotels, hospitals and large warehouses need.
- Handsets. Match the handset to the environment: a standard W73H for offices and clinics, a rugged or IP-rated model for kitchens, workshops and outdoor yards.
- Grandstream equivalent. The DP755 base with DP725 handsets covers the same ground at a lower price point.
Rule of thumb for planning: one base per floor in a normal office building, one base per 40 by 40 m of open warehouse, and a site walk before you commit if the building has cold rooms, thick cores or metal mezzanines.
Wi-Fi phones: when they make sense
A Wi-Fi desk phone such as the Yealink T31W is a wired phone that happens to join the network wirelessly. It is the right answer in exactly one situation: the desk or room needs a phone and there is no data cable, and running one is expensive or impossible. Hotel rooms in an older building are the classic case, which is why hotel handsets such as the Grandstream GHP620W exist in Wi-Fi versions.
Where a cable exists, use it. A wired PoE phone does not care about wireless congestion, channel changes or an access point rebooting, and it keeps working when the Wi-Fi does not. Staff who move around the building want DECT, not Wi-Fi handsets.
Hotel, clinic and warehouse phones
- Hotel rooms. Look for one-touch service keys (reception, housekeeping, room service), a design that survives guests, and PMS integration through the PBX for wake-up calls, minibar and room status. Wi-Fi models such as the GHP631W avoid recabling every room. Older properties often keep analogue room phones and connect them through an FXS gateway instead.
- Clinics. Wipeable surfaces, DECT for nurses and technicians, a wired phone at each reception and nursing station, and voicemail-to-email so messages are not lost between shifts.
- Warehouses and workshops. DECT with enough bases for coverage, loud ringers or a paging interface, and rugged handsets. A wall phone at the dock door is worth more than a phone on every desk in the office upstairs.
- Reception. One good phone with BLF keys or an expansion module, a proper headset, and a clear transfer workflow. This single position shapes how callers experience your company.
A worked example: 40-seat office in Dubai
Forty staff does not mean forty identical phones. A realistic mix looks like this:
| Position | Count | Model type | Why |
|---|---|---|---|
| Open-plan desks | 26 | Entry gigabit desk phone (T31G class) | PC behind the phone, two lines, PoE |
| Managers | 6 | Mid-range colour screen (T46U class) | More keys, USB headset, directory use |
| Reception | 1 + module | Mid-range + expansion module | BLF on every extension, fast transfers |
| Meeting rooms | 2 | Conference phone | Room audio, not a desk handset |
| Warehouse / stores | 1 base + 4 handsets | DECT base + handsets | Staff on the move, one base covers the area |
| Field and travelling staff | 6 | Mobile app only | Same extension, no hardware |
Same 40 people, but the money lands where it changes something. Browse the full range on the IP phones page, or send the seat breakdown and we will map models to roles for you.
Before you order
- Confirm the phones are SIP. One question, explained above, and it protects the whole investment.
- Count PC-behind-phone desks. Those need gigabit; the rest do not.
- Size the PoE switch with headroom, and put it on a UPS with the PBX.
- Decide the headset standard now, not after the phones arrive; it affects which port you need.
- Ask for pre-provisioning. Phones should arrive configured for your system so they register on first boot.
- Keep two spares on any site above 30 phones. A dead handset at reception should be a five-minute fix.
Send the seat breakdown, get the right mix
Tell us how many fixed desks, how many managers, whether reception watches other extensions, and who walks around the building. We come back within one working day with models per role, the PoE switch, and the total installed, brand new with manufacturer warranty.
Questions we get asked
What is a SIP phone, and is it the same as an IP phone?
In practice yes. An IP phone is any telephone that works over a network instead of a telephone pair. SIP is the open standard almost all of them use to register to a phone system and set up calls. A “SIP-compatible phone” simply means it follows that standard, so it can work with any SIP-based PBX, whether that is Yeastar, Grandstream, 3CX, Asterisk or a hosted service. Phones that are not SIP-compatible only register to their own vendor system.
Can I use an IP phone as a normal phone?
For the person using it, there is no difference: lift the handset, dial, transfer, hold. What changes is behind the desk. The phone needs a network point and a phone system to register to; it will not work plugged into an old telephone socket. If you need an analogue socket for a fax or a lift phone, that is what an FXS gateway is for.
What is PoE on a phone, and do I need it?
PoE (Power over Ethernet) means the network cable carries both the call and the electricity, so the phone has no power adapter. You need a PoE switch to supply it. It is worth it: one cable per desk instead of two, no adapters lost when people move desks, and a single UPS on the switch keeps every phone in the building alive during a power dip.
How much power does an IP phone use?
A typical desk phone draws 2 to 5 watts, a phone with a colour screen and Bluetooth 5 to 8 watts, and a phone with an expansion module or a video screen more. When sizing a PoE switch, budget around 7 watts per phone and add 30 percent headroom, or more if the same switch also feeds access points and cameras.
Does an IP phone need a Gigabit port?
If a PC shares the desk, yes. Most desk phones have two network ports: one to the wall, one to the computer, so the PC connects through the phone. On a 100 Mbps phone, that PC is limited to 100 Mbps even on a gigabit network. The price difference between the 100 Mbps and gigabit version of the same model is usually small; take the gigabit one wherever a computer sits behind the phone, and save money on phones with nothing behind them.
What is the range of a DECT phone in an office?
Roughly 50 metres indoors from a single base station and up to 300 metres outdoors, depending on walls. Concrete, steel racking and lift shafts cut it hard. For a warehouse, a hospital floor or a hotel, you do not chase range with one base: you use a multi-cell system with several bases that hand the call over as the person walks, like mobile coverage inside your own building.
How many DECT handsets can one base station support?
A single-cell base such as the Yealink W70B supports up to 10 handsets and 10 simultaneous calls, which covers most small offices and clinics. Beyond that, or where coverage needs more than one base, you move to a multi-cell system such as the W80 or W90 series, which scale to hundreds of handsets across a building.
Wi-Fi phone or cable: which is better?
Cable, where a cable exists. A wired phone with PoE has no battery, no roaming problem and no dependence on the wireless network. Wi-Fi phones earn their place where cabling is impossible or expensive: hotel rooms in an old building, a temporary showroom, a mezzanine office, a villa. DECT, not Wi-Fi, is the right answer for staff who walk around all day.
Do I need a phone with many line keys?
Only where someone handles other people’s calls. A receptionist watching who is free and who is on a call wants line keys with busy-lamp field (BLF), or an expansion module. A normal desk needs two or three. Buying 40 phones with 16 keys each because the receptionist needs them is the most common overspend we see.
Will my phones work if I change the PBX later?
If they are standard SIP phones, yes: they are reprovisioned to the new system and carry on. If they are proprietary handsets tied to one vendor platform, they become scrap. This is the single question that decides whether your handset investment survives, and it is why we default to SIP-first brands.
Written by the IRIX telephony team in Bur Dubai. Browse IP phones, IP PBX systems, VoIP gateways and PoE switches. All brand new, sealed, with manufacturer warranty and a UAE VAT invoice.