Description
Yealink SIP-T40G IP Phone Legacy Gigabit HD SIP Desk Phone Dubai
Yealink SIP-T40G — Legacy Gigabit SIP Phone for Existing Fleets
The Yealink SIP-T40G is a legacy Gigabit HD SIP desk phone used in many Dubai offices, branch locations, back-office desks and older VoIP deployments. It was popular because it combined a compact body, dual Gigabit Ethernet ports, PoE support, Yealink Optima HD voice and three SIP accounts without moving into the larger executive-phone price tier. If your office already runs T40G handsets and you need matching units for a like-for-like replacement, Vector Digital Systems can quote available stock or advise the current Yealink replacement path.
Important buyer note: SIP-T40G is not a current-generation Yealink launch model. Yealink now lists SIP-T40G under EOL/support resources, so this page is written for replacement demand, existing fleet matching and legacy support — not for buyers choosing a fresh standard for a new office rollout. For new deployments, ask David to quote the current Yealink Gigabit entry model instead.
SIP or Microsoft Teams? Get the Platform Right Before You Order
The SIP-T40G is a SIP phone. It registers to SIP platforms such as 3CX, Yeastar, Grandstream UCM, Asterisk, FreePBX and hosted PBX providers. It is not a Microsoft Teams phone, and it cannot be converted into a Teams phone by firmware flashing. If your company runs Teams Phone, ask David for a Yealink MP-series Teams model verified against Microsoft’s official certified-device list before quoting.
| Your Platform | Right Phone | What You Need |
|---|---|---|
| SIP PBX — 3CX, Yeastar, UCM, Asterisk, hosted PBX | SIP-T40G only if matching an existing legacy fleet | SIP credentials from your phone system |
| Microsoft Teams | Yealink MP-series Teams phone — ask David for the current certified model | Microsoft 365 tenant + Teams Phone licence per user |
| Zoom Phone | Zoom-certified Yealink range — ask David | Zoom Phone licence per user |
PoE Truth — Check Power Before Dispatch
The SIP-T40G is normally powered by PoE from the network switch. Do not assume a power adapter is included unless it appears on the quote. If your office switch is not PoE-capable, ask David to add the matching Yealink PSU. This is especially important for replacement orders: the old phone may have been powered by an adapter that is no longer on the desk, or by a switch port that changed during a network refresh.
Why the T40G Was Popular — Gigabit Passthrough
The main reason offices chose the SIP-T40G over lower-cost entry phones was Gigabit passthrough. The phone has dual Gigabit Ethernet ports, so a PC connected behind the phone can continue using high-speed desk cabling. For Dubai offices with 1Gbps structured networks, this avoids the classic problem where an older 100Mbps phone slows the laptop behind it.
T40G in the Yealink Desk Phone Range
The SIP-T40G sits as a legacy compact Gigabit desk phone. It is not the right first choice for a brand-new standardisation project, but it still matters when an office needs to match an existing T40G estate. For a fresh deployment, the current replacement conversation normally moves to a newer Yealink entry Gigabit model. For larger screens, more accounts, Wi-Fi or BLF-heavy desks, step up into the newer T-series range.
| Feature | T31P | SIP-T40G ★ | T31G / Current Replacement |
|---|---|---|---|
| Display | Entry graphical display | 2.3″ 132×64 graphical LCD | 132×64 graphical LCD with backlight |
| SIP Accounts | Entry SIP user | 3 SIP accounts | Current entry Gigabit SIP model |
| Programmable Keys | Basic desk use | Compact line-key layout | Current entry layout |
| GigE | No — Fast Ethernet tier | Yes — dual Gigabit ports | Yes — current Gigabit tier |
| Wi-Fi / Bluetooth | — | — | — |
| Conference | Entry local conference | Local SIP conference support | Current entry conference support |
| Expansion | No EXP console | No EXP console | No EXP console |
| Replaces | Basic branch desks | Older compact Gigabit desks | Recommended replacement path for new orders |
| Price Tier | Lowest entry tier | Legacy / stock-dependent | Current entry Gigabit tier |
| Choose if… | You need the lowest-cost SIP phone and Fast Ethernet is acceptable | You must match an existing SIP-T40G fleet or replace a failed T40G desk phone | You are buying new stock and want the current Gigabit entry model |
Where the SIP-T40G Still Makes Sense in Dubai
Existing fleet matching. If your Dubai office already has SIP-T40G phones on every desk and one unit fails, a same-model replacement keeps the user interface, provisioning behaviour and desk appearance consistent. This matters in hotels, clinics, schools, warehouses and multi-branch businesses where staff should not relearn a phone for one replacement desk.
Legacy PBX environments. Some 3CX, Yeastar, Grandstream UCM, Asterisk and hosted PBX installations still have templates and key layouts built around the SIP-T40G. Vector Digital Systems can stage replacement units with the same SIP credentials, dial plan and line-key behaviour before dispatch.
Gigabit desk passthrough. The T40G’s strongest legacy advantage is dual Gigabit Ethernet. For offices in Business Bay, Deira, Jebel Ali, DIP, Al Quoz and DMCC where a PC sits behind the phone, this avoids the 100Mbps bottleneck that older Fast Ethernet phones can create.
When to move to the current replacement. If this is a new office, a bulk project, or a refresh for more than a few desks, ask David to quote the current Yealink replacement model instead of building a new standard around an EOL phone. You still get SIP compatibility, PoE, Gigabit passthrough and Vector Digital Systems staging — with a current product lifecycle.
Full Technical Specifications
| Specification | Yealink SIP-T40G |
|---|---|
| Product Status | Legacy / EOL support product — quote only for matching stock or replacement requirements |
| Display | 2.3 inch 132×64-pixel graphical LCD with backlight |
| SIP Accounts | Up to 3 SIP accounts |
| Network Ports | Dual Gigabit Ethernet ports — LAN + PC passthrough |
| Power | PoE support. PSU is not assumed included; add power adapter if the switch is not PoE-capable. |
| Audio | Yealink Optima HD voice, HD handset, HD speakerphone, full-duplex speakerphone with acoustic echo cancellation |
| Codecs | Wideband and narrowband SIP codec support, including Opus where supported by the platform |
| Headset | Headset support with EHS support for compatible wireless headset setups |
| Wi-Fi / Bluetooth | Not built in. Use wired Ethernet. |
| Expansion Modules | No modern EXP55 console support. For BLF-heavy reception desks, use a current T7-series model such as T74U or T77U. |
| Stand / Mounting | Two-angle adjustable stand; wall-mountable with compatible accessory |
| Compatible with | 3CX, Yeastar P-Series, Grandstream UCM, Asterisk, FreePBX, hosted PBX and RFC-compliant SIP platforms |
Compatible Accessories
| Accessory | Model | Purpose |
|---|---|---|
| Power Supply | Yealink PSU — confirm at order | Required if the desk switch port does not provide PoE |
| EHS Adapter | Legacy EHS accessory — confirm compatibility before quote | Remote answer / hang-up with compatible wireless headsets |
| Wired Headset | Yealink YHS series / compatible RJ headset | For reception, branch and call-handling users who need hands-free work |
| Wall Mount | Compatible T4-series wall-mount accessory | For corridors, guard rooms, kitchens, store rooms and service counters |
Staging Before Dispatch — What We Configure
Vector Digital Systems can stage SIP-T40G replacement units before dispatch: SIP account registration, provisioning template, line keys, speed dials, dial plan, codec settings and a live test call. For existing fleets, send David the old extension list or backup template and we will match the desk behaviour as closely as the platform allows. For larger refreshes, we will also quote the current Yealink replacement model so procurement can compare legacy matching against a clean upgrade path.
Export from Dubai
Vector Digital Systems exports Yealink SIP phones from Dubai to system integrators, PABX installers, telecom operators and enterprise buyers. For SIP-T40G, export supply depends on remaining stock and replacement requirements. Common export routes include Oman, Saudi Arabia, Kuwait, Bahrain and Qatar in the Gulf; Jordan and Egypt in the wider Arab market; Kenya and Uganda in East Africa; and Pakistan, Sri Lanka and Bangladesh for South Asian projects. Shipments move FOB Dubai with commercial invoice, packing list and certificate of origin on request.
Get a same-day quote in AED — T40G stock or replacement model
Tell David: quantity, whether you need exact SIP-T40G matching stock, your phone system, PoE availability and delivery location. We quote with VAT breakdown, delivery and staging included.
Frequently Asked Questions — Yealink SIP-T40G
Is the Yealink SIP-T40G still a current model?
No. Yealink lists the SIP-T40G as a legacy/EOL support product. Vector Digital Systems can quote it only where matching stock or replacement stock is specifically required. For a new office standard, ask David for the current Yealink replacement model.
Does the Yealink SIP-T40G work with Microsoft Teams?
No. The SIP-T40G is a SIP phone for platforms such as 3CX, Yeastar, Grandstream UCM, Asterisk and hosted PBX services. Microsoft Teams phones are separate Yealink MP-series devices and should be verified against Microsoft’s official certified-device list before quoting.
Does the Yealink SIP-T40G come with a power adapter, or do I need PoE?
Do not assume a power adapter is included with the SIP-T40G. The phone supports PoE from a network switch. If your switch port is not PoE-capable, ask David to add the matching Yealink power supply to the order.
Will the SIP-T40G work with our 3CX, Grandstream UCM, Yeastar or existing SIP PABX?
Yes. The SIP-T40G is a SIP phone and works with RFC-compliant SIP platforms including 3CX, Yeastar, Grandstream UCM, Asterisk, FreePBX and hosted PBX providers. Vector Digital Systems can stage the phone with your SIP registration and provisioning template before dispatch.
SIP-T40G vs current replacement model — which one should I buy?
Choose SIP-T40G only if you need to match an existing T40G fleet or replace a failed T40G desk phone like-for-like. For new deployments, bulk projects or long-term standardisation, choose the current Yealink replacement model so future stock, firmware and support are easier to manage.
Does the SIP-T40G support Gigabit passthrough for my laptop?
Yes. The SIP-T40G has dual Gigabit Ethernet ports, so a laptop or PC connected through the phone can keep Gigabit network speed instead of being limited by a 100Mbps phone passthrough.
Can I add a headset to the SIP-T40G?
Yes. The SIP-T40G supports headset use and EHS compatibility with appropriate legacy accessories. Because the model is now legacy, David should confirm the exact headset and EHS adapter availability before quoting.
What is the best Yealink IP phone for replacing old SIP-T40G desks in Dubai?
If you need the same look and user behaviour, quote SIP-T40G only where matching stock is available. If you are replacing several desks or setting a new office standard, the best choice is the current Yealink Gigabit entry model, with a step-up to T74U for users who need a larger colour display, more accounts or BLF-heavy reception features.
Who is the Yealink authorised supplier in Dubai?
Vector Digital Systems LLC has supplied and integrated Yealink solutions in Dubai since 2009. David handles Yealink specification, project pricing, staging and local warranty coordination, so buyers do not need to manage international courier claims for standard support.
Does Vector Digital Systems export Yealink SIP-T40G phones from Dubai?
Yes, subject to remaining stock and replacement requirements. Vector Digital Systems exports Yealink SIP phones from Dubai to integrators and enterprise buyers in Oman, Saudi Arabia, Kuwait, Bahrain, Qatar, Jordan, Egypt, Kenya, Uganda, Pakistan, Sri Lanka and Bangladesh. Shipments are FOB Dubai with commercial invoice, packing list and certificate of origin on request.
Does Vector Digital Systems configure the SIP-T40G before delivery?
Yes. SIP-T40G replacement units can be staged before dispatch with SIP registration, provisioning template, line keys, speed dials, dial plan, codec settings and a live test call. For existing fleets, Vector Digital Systems can match the old desk configuration as closely as the platform allows.
