Phone Button Modules and Key Expansion Modules
A button module is a panel of extra programmable keys that attaches to the side of a desk phone. You may also see it called a key expansion module, sidecar or DSS module. Receptionists, operators and supervisors use a button module to see the status of other extensions, pick up their calls and dial with one touch.
This range covers new and refurbished button modules from Avaya, Nortel, Cisco, Siemens, Polycom, Mitel, Tenovis, Snom, Toshiba, Alcatel, ShoreTel and Aastra. Models include the Avaya BM12, EU24 and JEM24, the Cisco 7914, 7915 and 7916, the Cisco SPA500S, the Nortel T24 and Siemens OptiPoint key modules. More parts are in phone accessories.
Showing 1–12 of 84 resultsSorted by popularity
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Avaya SBM24 Button Module
£48.60 £40.50 Ex. VAT -
Siemens OptiPoint 500 Key Module
£30.00 £25.00 Ex. VAT -
Cisco 7914 Button Module
£30.00 £25.00 Ex. VAT -
ALCATEL 10 KEY MODULE
£42.12 £35.10 Ex. VAT -
Cisco SPA500S Button Expansion Module
£49.50 £41.25 Ex. VAT -
Avaya BM12
£30.00 £25.00 Ex. VAT -
Avaya 1100 Button Module
£30.00 £25.00 Ex. VAT -
Cisco 7915 Expansion Module
£97.19 £80.99 Ex. VAT -
Nortel T24
£30.00 £25.00 Ex. VAT -
Polycom VVX Colour Expansion Module B
£90.00 £75.00 Ex. VAT -
Cisco 7915G Expansion Module NEW
£30.00 £25.00 Ex. VAT -
Polycom SoundPoint Button Module
£117.00 £97.50 Ex. VAT
How to choose a button module
Match the module to the phone
Each button module works only with specific phone models. The Avaya JEM24 is made for J169 and J179 phones, and the Cisco 7915 for 7962G, 7965G and 7975G phones. Check the model on the label under your phone before you order.
Check the system supports it
The phone system must support the button module as well as the phone. Digital modules, such as the Avaya DBM32, work on digital phones connected to a compatible system. Keys are set up in the system or phone settings once the module is connected.
Choose the number of keys
Key counts run from small 10-key modules to 80-key BLF panels. Some modules, such as the Avaya BM12 and Cisco 7915, have two pages of keys. Many phones accept several modules, and the Avaya 9608 and 9611G take up to three BM12s.
Plan power for extra modules
Each button module draws power from its phone. With two or more modules, some phones need a local power supply or a higher PoE class from the switch. Check the phone maker's guide for the limit.
Match finish and display
Button modules come in finishes that match the phone, such as Siemens arctic or Cisco charcoal, and in plain, backlit or colour display versions. The Avaya EU24 BL, for example, is the backlit version of the EU24.
Button modules and the phones they are made for
| Button module | Made for |
|---|---|
| Avaya BM12 | Avaya 9608, 9611G and 9641G IP phones |
| Avaya JEM24 | Avaya J169 and J179 IP phones |
| Avaya EU24 | Avaya 2420 digital phones and some 4600 series IP phones |
| Avaya / Nortel 1100 expansion module | 1120E, 1140E and 1165E IP phones |
| Cisco 7914 | Cisco 7960G, 7961G, 7970G and 7971G IP phones |
| Cisco 7915 and 7916 | Cisco 7962G, 7965G and 7975G IP phones |
| Cisco SPA500S | Cisco SPA500 series phones with an expansion port, such as the SPA504G and SPA508G |
| Nortel T24 | Nortel T7316E digital phones on Norstar and BCM systems |
Questions
What is a button module on a phone?
A button module is an add-on panel of programmable keys that connects to a desk phone. Each key can show whether a colleague is on a call, pick up their call or dial a number with one press. Button modules are common on reception and operator phones.
Will a button module work with any phone?
No. Each button module is made for specific phone series and connects through a port only those phones have. A module from one maker will not work on another maker's phone, and within one brand the series must match. Send us your phone model through a quote request if you are unsure.
How many button modules can I add to one phone?
It depends on the phone, and is usually between one and three. Some older digital phones, such as the Nortel T7316E, take more. Each extra module raises the phone's power draw, so check whether you need a local power supply.
Do I need to programme a button module?
Yes. Once the button module is connected, its keys are set up in the phone system or in the phone's settings, for example as extension status (BLF) keys, speed dials or line keys. Your system administrator or maintainer can programme them, and some systems let users set their own keys.
Need a model that is not listed?
Send us the model numbers and quantities you need. We will reply with what we can supply.
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- Returns: within 14 days, see delivery information.
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