PBX Modules
PBX modules are plug-in expansion units that increase the connection and channel capacity of a modular PBX. Common module types: a/b modules (additional analogue extensions), S0 modules (ISDN desk phones), VoIP modules (SIP channels), DECT modules (internal DECT base stations) and GSM modules (direct mobile network connection). Auerswald COMpact series (4000, 5020, 5500) and Agfeo systems are typical modular systems with vendor-specific slots. Always check compatibility with the system and installed firmware version.
Common Manufacturers: Auerswald • Agfeo • Tiptel • Beronet • Patton
Top sellers in Modules
Agfeo ES 7xx Upgrade Kit fortelephone systems 6101778
629,85 EUR
AGFEO ES 5xx Upgrade Kit370,50 EUR
Auerswald COMpact 2a/b-Modulfor Compact 3000
43,75 EUR
Auerswald 90581 COMpact ISDNmodule
51,86 EUR
AUERSWALD COMM SO modules forCompact 3000
58,30 EUR
Auerswald Commander, modules,4 THUS REV. III
274,55 EUR
Fanvil SIP-Paging Gateway PA2S88,42 EUR
Modules from Agfeo
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 Agfeo 1022591 CPU-Kit Kit ES5xx
Leistungstuning für Ihr ES 5xx System. Mit dem Upgrade Kit erweitern Sie Ihr ES System auf 8 VoIP-Kanäle. <p/>Zusätzlich erhöht sich die Voiceboxkapazität auf 240 Minuten und Sie haben die ... Lieske Part No.: 1000583 Mfg Part No: 1022591 |
95,00 EUR
 ≈ £81.51 | ≈ $110.11
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Agfeo 6101031 BT-40 modules (Bluetooth Module for ST40, ST42, ST45)
ST40 Bluetooth module support is not at TK Home Server; AS40P; AS4000; AS100IT Technical DescriptionHeadset HSP profiles supportHands-free profiles, HSP support - Bluetooth 2.0 6 headsets ... Lieske Part No.: 1289348 Mfg Part No: 6101031 Type: BT-Modul 40 |
171,00 EUR
≈ £146.72 | ≈ $198.19
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AGFEO patch panel holder set ES 730 IT / 770 IT
Expansion set for ES 730 IT and ES 770 IT (wall mounting installation type)! The set is used to attach an optional patch panel (termination of the installation cables) above/on the communication ... Lieske Part No.: 1289325 Mfg Part No: 6101450 Type: Patchfeldhalter Set ES730IT/770IT |
67,45 EUR
≈ £57.87 | ≈ $78.17
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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AGFEO module T-708
With the module T-708, you can operate a variety of analog phones, fax machines, and entrance telephones. Your existing analog telephones can be connected again. > Highlights: 8 analog ... Lieske Part No.: 884568 Mfg Part No: 6101472 Type: Modul T-708 |
427,50 EUR
≈ £366.80 | ≈ $495.47
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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AGFEO Module D-748
This module is the right choice, if you continue to use the installation as the ALL-IP connection. It has 4x digital port plus, each separately switchable between S0 internal / S0 external and 2 UP0. Lieske Part No.: 884594 Mfg Part No: 6101474 Type: Modul D-748 |
509,20 EUR
≈ £436.89 | ≈ $590.16
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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AGFEO module IP-700
1 LAN interface, for ES 730 IT and ES 770 IT. Scope of services: Expansion module for 16 additional VoIP voice channels. Possible Use of SIP external (SIP provider), SIP internal (SIP devices, AGFEO ... Lieske Part No.: 1289406 Mfg Part No: 6101475 Type: ACCS |
-10% 476,84 EUR 532,60 EUR
≈ £409.13 | ≈ $552.66
Delivery time from supplier's stock (ca.) 2 workdaysinfo_outline
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AGFEO ES 5xx Upgrade Kit
Update module to expand/increase performance of the ES 512 / 516 / 522 and 522 IT! The upgrade kit results in the following expansions: 8 instead of 4 IP channels (can be used externally and ... Lieske Part No.: 1289210 Mfg Part No: 6101521 Type: ES 5xx Upgrade Kit |
370,50 EUR
≈ £317.89 | ≈ $429.41
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Agfeo ES 7xx Upgrade Kit for telephone systems 6101778
With the ES 7xx Upgrade Kit, you can give your ES 730 IT/ ES 770 IT the label 'State of the Art!' After installing the upgrade kit, your ES 730 IT/ ES 770 IT has the same features as the ES 730 IT ... Lieske Part No.: 2027381 Mfg Part No: 6101778 Type: ES 7xx Upgrade Kit |
629,85 EUR
≈ £540.41 | ≈ $730.00
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Agfeo 6101845 Wall mount T17 SIP
Perfekt befestigt, immer griffbereit - der AGFEO Wandhalter sorgt für eine sichere und elegante Lösung, um Ihr AGFEO T 17 SIP Telefon platzsparend an der Wand zu montieren.HighlightsAGFEO ... Lieske Part No.: 597200 Mfg Part No: 6101845 |
14,25 EUR
≈ £12.23 | ≈ $16.52
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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Modules from Auerswald
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 Auerswald COMtrexx Flex GbE-NET module
The COMtrexx Flex GbE-NET module extends the COMtrexx Flex with a second Ethernet interface. This allows a separate IP address range to be used for VoIP telephony. This enables significantly higher ...Lieske Part No.: 2132398 Mfg Part No: 90025 |
122,55 EUR
≈ £105.15 | ≈ $142.04
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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AUERSWALD COMpact 2BRI module for COMpact 4000/5200/5200R
With the Compact 2 BRI module you expand your COMpact 4000/5000 or 5000R to two variable ISDN ports.HighlightsTwo variable ISDN Ports (external / internal)internal: choice between modes S0 (4-wire) or ... Lieske Part No.: 416506 Mfg Part No: 90131 |
173,47 EUR 173,48 EUR
≈ £148.84 | ≈ $201.05
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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AUERSWALD COMpact 2FXO module for COMpact 4000/5200/5200R
With the Compact 2 FXO module you expand your COMpact 4000/5000 or 5000R to two analog trunk heads.HighlightsTwo analog trunk headsfax switch (active / passive)Possible number of modules in the ... Lieske Part No.: 416469 Mfg Part No: 90132 |
222,42 EUR
≈ £190.84 | ≈ $257.78
Delivery time from supplier's stock (ca.) 11 workdaysinfo_outline
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AUERSWALD COMpact 4FXS module for COMpact 5X00/5X00R/COMtrexx
The Compact 4 FXS module you expand your COMpact 5000 / 5000R to four analog extensions.HighlightsFour analog extensionsWith Caller ID (CLIP) and name display (CNIP)Possible number of modules in the ... Lieske Part No.: 416524 Mfg Part No: 90133 |
136,28 EUR 136,30 EUR
≈ £116.93 | ≈ $157.95
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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AUERSWALD COMpact NET module for COMp. 5200/5200R/5500R/COMtr
COMpact NET module (for COMp. 5200/5200R/5500R/COMtrexx Business) Lieske Part No.: 1125506 Mfg Part No: 90333 |
128,61 EUR
≈ £110.35 | ≈ $149.06
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Auerswald Commander, modules, 4 THUS REV. III
PRODUCT INFORMATION: COMM 4 S0 module - to expand the Commander Basic, Business to 4 selectable S0. REV. III, NOT ONLY FOR Basic.2 for Basic! Lieske Part No.: 792240 Mfg Part No: 90448 |
274,55 EUR
≈ £235.56 | ≈ $318.20
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Auerswald COMpact 2a/b-Modul for Compact 3000
Device Type: Expansion module Packaged Quantity: 1 Form Factor: Plug-in module Connectivity Technology: Wired, no. Connections: 2, Compatible Slots: 1 x Expansion Slot Lieske Part No.: 294184 Mfg Part No: 90579 |
43,75 EUR
≈ £37.54 | ≈ $50.71
Delivery time from supplier's stock (ca.) 9 workdaysinfo_outline
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AUERSWALD COMM SO modules for Compact 3000
Device Type: Expansion module Packaged Quantity: 1 Form Factor: Plug-in module Connectivity Technology: Wired, no. Connections: 1, Compatible Slots: 1 x Expansion Slot Lieske Part No.: 826410 Mfg Part No: 90580 |
58,30 EUR
≈ £50.02 | ≈ $67.57
Delivery time from supplier's stock (ca.) 11 workdaysinfo_outline
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Auerswald 90581 COMpact ISDN module
the new COMpact ISDN module extend your customers the Compact 3000 analog, Compact 3000 ISDN and Compact 3000 VoIP flexibly to a ISDN trunk port or an internal ISDN port that is even an alternative to ... Lieske Part No.: 369070 Mfg Part No: 90581 |
-7% 51,86 EUR 55,83 EUR
≈ £44.50 | ≈ $60.11
Delivery time from supplier's stock (ca.) 9 workdaysinfo_outline
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Modules from Avaya
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 Avaya 2876404071 MLBIML INT.MOD.LINK SUBMOD. ML
INLieske Part No.: 242910 Mfg Part No: 2876404071 |
386,65 EUR
≈ £331.75 | ≈ $448.13
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Modules from beroNet
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 beroNet module 1x PRI with HPC
The BF1E1 module is a 1 port PRI/ISDN module for the berofix gateways.Each individual port of the BF1E1 module can be operated individually in NT (Network Termination) or TE (Terminal Equipment) mode. Lieske Part No.: 1705067 Mfg Part No: BNMO-1PRI |
280,90 EUR
≈ £241.01 | ≈ $325.56
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beroNet module 2x PRI with HPC
2 Port PRI T1/E1 Module with High Precision Clock and BNSBCPLUGPRI The BF2E1 module is a 2 port PRI/ISDN module for the beroNet VoIP gateways. Each individual port of the BF2E1 module can be ... Lieske Part No.: 1969969 Mfg Part No: BNMO-2PRI |
386,23 EUR 386,23 EUR
≈ £331.39 | ≈ $447.64
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Modules from Fanvil
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Fanvil SIP-Paging Gateway PA2S
Fanvil PA2S is a SIP paging gateway that uses the standard IP/RTP/RTSP protocol for media streaming. It sets a variety of functional interfaces in one: broadcast, recording, intercom, security. Lieske Part No.: 1895240 Mfg Part No: PA2S |
-13% 88,42 EUR 101,88 EUR
≈ £75.86 | ≈ $102.48
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Modules from Mitel
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Mitel DECT base station RFP accessories, directional antenna
Mitel RFP 4x Directional Antenna Scope of delivery: 2* 4GenRFP RF Cable SMA-TNC 1000mm 1* PKG UNIT BOX 55X160X175MM MITEL 1* DECT ANTENNA DUAL LINEAR Label, operating instructions Lieske Part No.: 1782454 Mfg Part No: 50006980 |
240,81 EUR
≈ £206.62 | ≈ $279.10
Delivery time on requestinfo_outline
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Mitel DECT base station RFP accessories, antenna installation kit
Mitel RFP 4x Ext. Antenna Installation Kit Lieske Part No.: 1784969 Mfg Part No: 50006981 |
90,53 EUR 90,53 EUR
≈ £77.67 | ≈ $104.92
Delivery time on requestinfo_outline
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PBX Modules – Product Details & Advice
PBX modules are plug-in expansion units that increase the connection and channel capacity of a modular PBX. Common module types: a/b modules (additional analogue extensions), S0 modules (ISDN desk phones), VoIP modules (SIP channels), DECT modules (internal DECT base stations) and GSM modules (direct mobile network connection). Auerswald COMpact series (4000, 5020, 5500) and Agfeo systems are typical modular systems with vendor-specific slots. Always check compatibility with the system and installed firmware version.
PBX accessories: PBX Accessories. System phones for these systems: IP System Phones.
Frequently Asked Questions
▶ How many VoIP channels do I need? As a rule of thumb: approx. 1 simultaneous channel per 5–8 employees (depending on phone intensity). A company with 40 employees typically needs 5–8 VoIP channels. For intensive use (call centre, sales), calculate rather 1:3. Include peak loads (Monday morning, promotional phases). |
▶ What is a GSM gateway module? A GSM gateway module connects the PBX directly to the mobile network (GSM/UMTS/LTE). Outgoing calls to mobile numbers are routed via the gateway SIM card – at mobile tariffs instead of landline-to-mobile prices. Useful for high outgoing mobile call volume. Incoming mobile numbers can also be routed to the system. |
▶ Firmware update for PBX – what to consider? Before a firmware update: fully back up configuration (manufacturer-specific backup tool). Read release notes – configuration changes may be required. Never apply update during core working hours (system restart). After update, test all functions (exchange lines, call forwarding, voicemail). Auerswald offers automatic update checking via the administration interface. |
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