System Telephones S0/UP0 from Tiptel
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System Telephones S0/UP0 from Tiptel
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 Tiptel 1082620 Retell 83 system telephone anthracite S0
100 telephone book, appointment 50 Managing 20x redial, TAPI / CTI Schni ttstelle, 20 calls list, free n Speak, 14 system keys with busy lamps for 4011 XT / 30xx series, large backlit displayLieske Part No.: 432250 Mfg Part No: 1082620 |
129,50 EUR
 ≈ £111.76 | ≈ $149.44 plus delivery charges
Delivery time on requestinfo_outline
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Tiptel 1082640 Retell 85 system telephone anthracite S0
Systel for Retell 3011/22 system and Retell 3011/22 office and tiptel.com 411/811/822 XT / rackGroßes, illuminated graphic display Convenient, intuitive menu menu-based operation of the PBX voicemail ... Lieske Part No.: 508829 Mfg Part No: 1082640 |
206,11 EUR
≈ £177.87 | ≈ $237.85 plus delivery charges
Delivery time on requestinfo_outline
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Tiptel 1082654 Retell 85 Up0 system telephone anthracite
Systel for Retell 3011/22 system and Retell 3011/22 office and tiptel.com 411/811/822 XT / rackGroßes, illuminated graphic display Convenient, intuitive menu menu-based operation of the PBX voicemail ... Lieske Part No.: 149981 Mfg Part No: 1082654 |
206,11 EUR
≈ £177.87 | ≈ $237.85 plus delivery charges
Delivery time on requestinfo_outline
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Tiptel 1082670 Retell 83 Up0 system telephone anthracite
Telephone system for tiptel.com 822XT / 822XT rack Alphanumeric (with Retell 4S0/UPN-Modul) Beleuchtung14 display with programmable function keys with LEDU. a programmable internal busy display Lieske Part No.: 717286 Mfg Part No: 1082670 |
129,50 EUR
≈ £111.76 | ≈ $149.44 plus delivery charges
Delivery time on requestinfo_outline
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Tiptel 1082810 Retell 2020 system telephone anthracite
Comfortable ISDN phone without voice mailbox Trendy, steeply dipping model form, 3-stage höhenverstellbarWandmontagefähig2-line alphanumeric display, beleuchtetUhrzeit-/Wochentagsteuerung 6 ... Lieske Part No.: 312979 Mfg Part No: 1082810 |
117,76 EUR
≈ £101.63 | ≈ $135.90 plus delivery charges
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Tiptel 1082820 Retell 2030 system telephone anthracite
Comfortable ISDN phone with voicemail and CTI Funktion.Trendige, steeply dipping model form, 3-stage height-adjustable wall mountable phone registers for 100 station alphanumeric display with ... Lieske Part No.: 815361 Mfg Part No: 1082820 |
149,18 EUR
≈ £128.74 | ≈ $172.15 plus delivery charges
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Tiptel 1124470 Retell key module 85 KM-30
Highlight extension to 30 freely programmable multifunction keys (numbers, functions, settings) Up to 3 additional modules are at a Retell 85 system connected (= total max. 100 multifunction keys) for ... Lieske Part No.: 480787 Mfg Part No: 1124470 |
77,95 EUR
≈ £67.27 | ≈ $89.95 plus delivery charges
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Tiptel Power supply for Tiptel 332
Replacement Netzteill for Tiptel 332 Lieske Part No.: 713615 Mfg Part No: 4569121 |
17,40 EUR
≈ £15.02 | ≈ $20.08 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. |