System Telephones S0/UP0 from Auerswald
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System Telephones S0/UP0 from Auerswald
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 Auerswald COMfortel Xtension ® 300 black
Basic Properties - Color: Black- Width: 120 mm - Height: 110 mm - Depth: 210 mm - Weight: 310 g Technical DescriptionRobust mechanical coupling with special connectorto max. 3 additional ... Lieske Part No.: 364277 |
140,45 EUR
 ≈ £121.21 | ≈ $162.08 plus delivery charges
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Auerswald 90069 COMfortel 1400 (ISDN) black
Auerswald COMfortel 1400 (ISDN) black Entry-phone system with 8,9 cm ( 3,5 inch )color display and 10 programmable function keys. 8,9 cm ( 3,5 inch )color display with touch functionAutomatic ... Lieske Part No.: 408875 Mfg Part No: 90069 |
-33% 114,84 EUR 170,90 EUR
≈ £99.11 | ≈ $132.53 plus delivery charges
Delivery time on requestinfo_outline
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Auerswald COMfortel 1400 (ISDN) black - USED
Only available to a limited extent Entry-level system telephone with 8,9 cm ( 3,5 inch ) color display and 10 programmable function keys. 8,9 cm ( 3,5 inch ) color display with touch functionAutomatic ... Lieske Part No.: 1895353 Mfg Part No: 90069 |
170,90 EUR
≈ £147.49 | ≈ $197.22 plus delivery charges
Delivery time on requestinfo_outline
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Auerswald COMfortel 1600 black
Entry-level telephone system with touch display (graphically) and 15 programmable function keys -. Backlit graphic display with touch function-Automatic detection of the connection S0 or UP0 best ... Lieske Part No.: 434894 Mfg Part No: 90114 |
250,55 EUR
≈ £216.22 | ≈ $289.13 plus delivery charges
Delivery time on requestinfo_outline
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Auerswald COMfortel 2600 black
Professional system telephone with large TFT touch display, up to 105 function keys and scripted answering machine -. Large TFT color display with touch function and automatically up-and-dimming ... Lieske Part No.: 436255 Mfg Part No: 90116 |
313,84 EUR
≈ £270.84 | ≈ $362.17 plus delivery charges
Delivery time on requestinfo_outline
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Auerswald COMfortel XT-PS (power supply)
Auerswald COMfortel XT-PS (power supply) Lieske Part No.: 628008 Mfg Part No: 90573 |
42,29 EUR
≈ £36.50 | ≈ $48.80 plus delivery charges
Delivery time on requestinfo_outline
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Auerswald COMfortel Xtension 300 black
Key extension for the Auerswald COMfortel 3500, 3200 and 2600 with 30 Tasten.Wird COMfortel fed 3500 with PoE (Power over Ethernet), then connect the first Beistellmoduls COMfortel Xtension300 is to ... Lieske Part No.: 544004 Mfg Part No: 90582 |
156,05 EUR
≈ £134.67 | ≈ $180.08 plus delivery charges
Delivery time on requestinfo_outline
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ISDN/S0 System Phones – Technical Background & Applications
ISDN system phones are designed for the S0 bus (Basic Rate Interface, 2B+D, 2x64 kBit/s bearer channels) and operate together with an ISDN PBX (e.g. Auerswald COMpact, Agfeo, Tiptel). Compared to analogue phones, system phones provide advanced PBX features: CLIP/CLIR (caller ID display/suppression), MSN assignment (multiple numbers per bus), direct call keys, secretary-boss switching and internal conference functions. Many ISDN phones support Euro-ISDN (DSS1), the protocol standard valid in Germany and Europe (per ETSI ETS 300 102). With the progression of all-IP migration, ISDN phones are becoming rarer; however, Auerswald and Agfeo continue to support legacy systems and offer ISDN-compatible adapters for IP PBX systems. For new installations, we recommend considering IP system phones (SIP, H.323).
ISDN telephone systems as counterparts are in Telephone Systems; IP-based system phones under IP System Phones. We are happy to advise on all-IP migration and selection of suitable transition solutions: +49 (0)7666 / 88499-0.
Application Areas
| ✓ Business Telephony & Call Centres | ✓ Authorities & Public Institutions |
| ✓ Industrial Environments & Production Halls | ✓ Hotels & Hospitality |
| ✓ Hospitals & Care Facilities | ✓ Data Centres & IT Infrastructure |
Frequently Asked Questions
▶ What is the difference between ISDN S0 and ISDN S2M? S0 (BRI, Basic Rate Interface): 2 bearer channels (B-channels) at 64 kBit/s each + 1 control channel (D-channel, 16 kBit/s). Standard for households and small offices. Up to 8 terminals on the S0 bus (but max. 2 simultaneous calls). S2M (PRI, Primary Rate Interface): 30 B-channels at 64 kBit/s each + D-channel (64 kBit/s) – 30 simultaneous calls, typical for medium and large businesses with PBX. |
▶ Can ISDN system phones be operated on an IP PBX? Yes, provided the IP PBX provides an integrated or external ISDN S0 port. Many manufacturers (Auerswald, Agfeo) build S0 ports into their IP systems so existing ISDN system phones can continue to be used. Alternatively, an ISDN-to-SIP gateway enables old ISDN devices to operate on purely IP-based systems. |
▶ When does an ISDN PBX still make sense? For existing installations with already established ISDN infrastructure, continued use can still be economically sensible for several years, especially if no major expansion is planned. For new installations or planned business expansion, we recommend going directly to IP PBX systems (SIP trunking), as ISDN lines are being successively discontinued by telecoms providers (all-IP mandate). |
Why industry-electronics.de?
▶ Professional TK Range Over 15,000 telecoms products from Agfeo, Auerswald, Snom, Yealink, Innovaphone, Gigaset and other leading manufacturers. | ▶ B2B Expert Advice Our TK team advises on SIP migration, DECT planning, emergency call systems and standards compliance – free and vendor-neutral. | ▶ Volume Pricing from 1 Unit Quantity discounts, project prices and framework agreements for system integrators, authorities and industrial companies. |
▶ Fast Delivery Most items available from stock – free shipping across Germany from minimum order value. | ▶ 20+ Years TK Experience For over 20 years, Industry-Electronics has supplied system houses, authorities and industrial customers with professional telecoms technology. | ▶ Standards-Compliant Range All products comply with applicable EN, ETSI and VDE standards and regulatory approvals for commercial use. |