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 5xx Upgrade Kit314,16 EUR
Auerswald COMpact 2a/b-Modulfor Compact 3000
41,67 EUR
AUERSWALD COMM SO modules forCompact 3000
46,84 EUR
Auerswald 90581 COMpact ISDNmodule
55,83 EUR
Auerswald Commander, modules,4 THUS REV. III
224,85 EUR
Fanvil SIP-Paging Gateway PA2S89,61 EUR
Siemens STLS4 ISDN moduleon request
Modules from AGFEO
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 AGFEO CPU-Kit Kit ES5xx
CPU-Platine für Agfeo ES 512/516/522/522ITAls Ersatzteil für eine defekte CPU-Platine Lieske Part No.: 1000583 Mfg Part No: 1022591 |
95,00 EUR
 ≈ £81.32 | ≈ $110.77
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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 |
171,00 EUR
≈ £146.38 | ≈ $199.39
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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AGFEO patch panel holder set ES 730 IT / ES 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 |
50,46 EUR 51,33 EUR
≈ £43.19 | ≈ $58.84
Delivery time on requestinfo_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
≈ £365.94 | ≈ $498.47
Delivery time from supplier's stock (ca.) 3 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: ACCS |
509,20 EUR
≈ £435.88 | ≈ $593.73
Delivery time from supplier's stock (ca.) 3 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 |
532,60 EUR 547,91 EUR
≈ £455.91 | ≈ $621.01
Delivery time from supplier's stock (ca.) 6 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: ACCS |
314,16 EUR
≈ £268.92 | ≈ $366.31
Delivery time from supplier's stock (ca.) 2 workdaysinfo_outline
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AGFEO ES 7xx Upgrade Kit
The AGFEO 6101778 7XX Upgrade Kit is an expansion or upgrade set designed for compatible AGFEO communication systems from the 7XX series. It is suitable for users who want to enhance an existing ... Lieske Part No.: 2027381 Mfg Part No: 6101778 |
494,91 EUR
≈ £423.64 | ≈ $577.07
Delivery time from supplier's stock (ca.) 6 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 |
107,54 EUR
≈ £92.05 | ≈ $125.39
Delivery time on requestinfo_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
≈ £148.49 | ≈ $202.27
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 |
173,49 EUR
≈ £148.51 | ≈ $202.29
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
≈ £116.66 | ≈ $158.90
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Auerswald COMpact NET module
COMpact NET module (for COMp. 5200/5200R/5500R/COMtrexx Business) Lieske Part No.: 1125506 Mfg Part No: 90333 |
98,14 EUR
≈ £84.01 | ≈ $114.43
Delivery time from supplier's stock (ca.) 3 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 |
224,85 EUR
≈ £192.47 | ≈ $262.18
Delivery time from supplier's stock (ca.) 6 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 |
41,67 EUR 42,39 EUR
≈ £35.67 | ≈ $48.58
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 |
46,84 EUR 47,65 EUR
≈ £40.10 | ≈ $54.62
Delivery time from supplier's stock (ca.) 15 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 |
55,83 EUR
≈ £47.79 | ≈ $65.10
Delivery time on requestinfo_outline
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AUERSWALD mander VMF-R module
8-channel voice mail and fax system with 80 voice mail and fax boxes 80 Incl. SDHC card (4 GB) activation to 16 channels each with 120 voice mail and fax boxes and possible Lieske Part No.: 337634 Mfg Part No: 90680 |
756,87 EUR
≈ £647.88 | ≈ $882.51
Delivery time from supplier's stock (ca.) 1 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 |
224,80 EUR
≈ £192.43 | ≈ $262.12
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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 |
-29% 280,90 EUR 395,01 EUR
≈ £240.45 | ≈ $327.53
Delivery time on requestinfo_outline
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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
≈ £330.61 | ≈ $450.34
Delivery time from supplier's stock (ca.) 11 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 |
89,61 EUR
≈ £76.71 | ≈ $104.49
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Modules from Siemens
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 Siemens STLS4 ISDN module
Siemens Hicom systems, Siemens HiPath or T-Octopus Phone Systems A3 8 7 X924-A3 3-9 - W3 8 -Q924-7 B2-7 Used Lieske Part No.: 781291 Mfg Part No: S30817-Q0924-A313-11 |
on request
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Siemens V24 / 1 interface module
Siemens Hicom systems, Siemens HiPath or T-Octopus Phone Systems Used Lieske Part No.: 985744 Mfg Part No: S30817-Q6916-X100-03 |
on request
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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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