ISDN Modem

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53 Results

Smart Modem 1200B 8 Bit ISA 1200 Baud Internal Modem - Unbranded
Pre-Owned · Smart
$31.13
Was: $66.00was - US $66.00
or Best Offer
$6.33 shipping
SponsoredSponsored Ad
US ROBOTICS COURIER V.EVERYTHING PN00280600 W/AC-ADAPTER #B234
Pre-Owned · USRobotics
$39.99
or Best Offer
Free shipping
NIB ADTRAN 1200.153L2 EXPRESS XRT ISDN MODEM (718)
Open Box · ADTRAN
$55.00
or Best Offer
Free shipping
Vintage Adtran Express XRT ISDN Modem with Power Supply & Manual
Parts Only · ADTRAN
$8.99
or Best Offer
$14.50 shipping
NOS Motorola Bitsurfr Series ISDN Terminal Adapter
Open Box · Motorola
$39.99
or Best Offer
$13.15 shipping
3Com Office Connect ISDN LAN Modem Model 3C892
Pre-Owned · 3Com
$24.99
Free shipping
TELINDUS 1221 ADSL-A/B 2ETH-4P ISDN-BRI MODEM
Brand New
$145.00
or Best Offer
Free shipping
Motorola ISDN Modem model UTA220k. Unit Powers On. Untested.
Parts Only · Motorola
$9.99
$12.30 shipping
US ROBOTICS GSEP-M01 ISDN MODEM CARD, PCB PRINTED CIRCUIT BOARD
Pre-Owned · USRobotics
$39.99
or Best Offer
Free shipping
1 NOS Hayes ISDN SYSTEM ADAPTER SUPPORTS AT&T 5ESS AND NT DMS-100
Open Box · Hayes
$199.00
or Best Offer
$14.38 shipping
AdTran 1203153L2 Express 3000 ISDN modem with two phone ports
Brand New · ADTRAN
$75.00
or Best Offer
$15.00 shipping
Only 1 left!
UTA120 ISDN NETWRK TERMINAL ADAPTER. NEW
Brand New
$49.99
or Best Offer
$13.20 shipping
MOTOROLA NT1D NETWORK TERMINATION DEVICE 645750360010 *NO AC *WITH WARRANTY
Pre-Owned · Motorola
$28.00
Was: $35.00was - US $35.00
or Best Offer
$6.71 shipping
USER GUIDE & DISKETTES ONLY for the 3com Impact IQ External ISDN Modem
Brand New · 3Com
$24.75
or Best Offer
Free shipping
3COMImpactIQ External ISDN Modem,
Brand New · 3Com
$72.95
or Best Offer
Free shipping
3COM Impact isdn external digital modem
Brand New · 3Com
$27.53
$26.90 shipping
NMS Natural Microsystems AG4040 PCI Card 2025-51069 Rev.A2 #60
Pre-Owned
$238.35
$65.01 shipping
Eicon Diva Server 4-BRI-8M Active Isdn Card 4-PORT PCI #55
Pre-Owned · Eicon
$47.66
$43.34 shipping
Elsa Microlink V.34 V34 Isdn / TL Modem Serial #70
Pre-Owned · ELSA
$59.58
$43.34 shipping
Eicon Networks Diva Server Pcie Isdn Pri / E1-30 813-022-01 #80
Pre-Owned · Eicon
$476.70
$65.01 shipping
AVM Fritz! Card Isa Isdn Controller Modem Card Fritzcard A1 3.0 FC A130FCP0796
Pre-Owned · AVM Fritz!
$13.32
$21.31 shipping
JTEC J1200 ISDN TERMINAL ADAPTER MODEM INTERNET 2-PORT JUMP MONITOR
Pre-Owned
$225.81
$108.17 shipping
Dr.Neuhaus Niccy 1016 PC Card Isa 16-BIT Isdn Controller Modem U10 U12
Pre-Owned
$33.88
or Best Offer
$21.65 shipping
Hayes Accura ISDN Terminal Adapter - USB Connection
Open Box
$35.00
or Best Offer
$49.00 shipping
AVM Fritz! Isdn Fritz! Card Pcmcia #KZ-1972
Pre-Owned · AVM Fritz!
$25.24
or Best Offer
Free shipping
AVM C4 Active Isdn PCI Card 4 Ports #130
Pre-Owned · AVM
$119.17
$43.34 shipping
AVM C4 Active Isdn PCI Card 4 Ports 8 B-Channels 4x S0 #110
Pre-Owned · AVM
$95.34
$43.34 shipping
Siemens I-surf USB, Isdn Modem , #K-20-9
Pre-Owned · Siemens
$95.61
or Best Offer
$37.44 shipping
AVM Controller C2 Active Isdn PCI Card 4 B Channels 2x S0 Ports #80
Pre-Owned · AVM
$59.58
$43.34 shipping
Hagenuk, Databox Speed Viper, External Active Isdn PC Card. #SO-67
Open Box
$35.77
or Best Offer
$48.66 shipping
Speed Win PCI Isdn Card V.Sedlbauer Tiger100APC Chip 3201422
Pre-Owned
$8.67
$16.27 shipping
New Eicon Diva 2.02 Isdn PCI Adapter 305-189 Dialogic 800-675-03 810-314-03
Brand New · Eicon
$32.56
or Best Offer
$16.16 shipping
AVM Fritz! PCI 2.1 Fax Modem Isdn Controller For Windows XP Vista 7 8 0 3/8in
Pre-Owned · AVM Fritz!
$12.97
$25.00 shipping
Y-Cable 32 10/12ft For USB DSL Isdn Modem AVM Fritz! Card 2.0 Y-Cable
Brand New · Eicon
$21.17
$19.65 shipping
Top-Aktionspreis: AVM Fritz! Card Pcmcia 2.0 Isdn Card
Pre-Owned · AVM
$5.42
$12.99 shipping
AVM Active Isdn Controller B1 Pcmcia + Cable Active Card Faxing Callcentre
Pre-Owned · AVM
$32.56
$17.36 shipping
Router Bintec Bingo Plus Isdn System Bingo! Funkwerk Also For Faxing
Pre-Owned
$27.12
$24.10 shipping
AVM ISDN PCMCIA CONTROLLER A1 Faxing Fax With Notebook Also Modem Fritz! V420
Pre-Owned · AVM Fritz!
$14.65
$25.00 shipping
Faxing With Your PC! AVM Fritz! Card PCI V2.1 Isdn Modem Fritzcard Ok
Pre-Owned · AVM Fritz!
$10.80
$16.32 shipping
AVM Fritz! PCI 2.1 Fax Modem Isdn Controller Modem For Windows XP Vista 7 8 10
Pre-Owned · AVM Fritz!
$12.97
$16.27 shipping
AVM Fritz! Card PCMCIA 2.0 Isdn Card For Notebook
Pre-Owned
$5.14
$18.52 shipping
Fritz! Card AVM Isdn Controller A1 3.0 FC Isa Modem Vintage V426
Pre-Owned · AVM Fritz!
$8.61
$27.28 shipping
Bintec Bi CM-X21 2MBIT From Bianca/Brick XL2 Isdn Router
Pre-Owned · Bintec
$21.65
$19.55 shipping
AVM Fritz! 2.0 Card Pcmcia Isdn Modem for Notebook And Untra Quiet Fax O. Cable
Pre-Owned · AVM Fritz!
$5.14
$20.50 shipping
Eicon Diva Isdn USB Modem 810-223-02 Adapter Faxing With PC And Notebook EC02
Pre-Owned · Eicon
$54.04
$38.22 shipping
HERMSTEDT LEONARDO SP-PCI V2.2 ISDN CARD PCI
Pre-Owned
$38.72
or Best Offer
$29.04 shipping
a-Dsl ADSL Over Isdn Modem Router NOKIA M111 Top Condition
Pre-Owned · Nokia
$13.57
$43.82 shipping
AVM Isdn Controller Card B1 PCI V4.0 1MB Sram 9.00200 739 Fax Modem Vintage V425
Pre-Owned · AVM Fritz!
$65.02
$27.28 shipping

ISDN Modem

Shop by Category

Shop by Brand

53 Results

Smart Modem 1200B 8 Bit ISA 1200 Baud Internal Modem - Unbranded

US ROBOTICS COURIER V.EVERYTHING PN00280600 W/AC-ADAPTER #B234

NIB ADTRAN 1200.153L2 EXPRESS XRT ISDN MODEM (718)

Vintage Adtran Express XRT ISDN Modem with Power Supply & Manual

NOS Motorola Bitsurfr Series ISDN Terminal Adapter

3Com Office Connect ISDN LAN Modem Model 3C892

TELINDUS 1221 ADSL-A/B 2ETH-4P ISDN-BRI MODEM

Motorola ISDN Modem model UTA220k. Unit Powers On. Untested.

US ROBOTICS GSEP-M01 ISDN MODEM CARD, PCB PRINTED CIRCUIT BOARD

1 NOS Hayes ISDN SYSTEM ADAPTER SUPPORTS AT&T 5ESS AND NT DMS-100

AdTran 1203153L2 Express 3000 ISDN modem with two phone ports

UTA120 ISDN NETWRK TERMINAL ADAPTER. NEW

MOTOROLA NT1D NETWORK TERMINATION DEVICE 645750360010 *NO AC *WITH WARRANTY

USER GUIDE & DISKETTES ONLY for the 3com Impact IQ External ISDN Modem

3COMImpactIQ External ISDN Modem,

3COM Impact isdn external digital modem

NMS Natural Microsystems AG4040 PCI Card 2025-51069 Rev.A2 #60

Eicon Diva Server 4-BRI-8M Active Isdn Card 4-PORT PCI #55

Elsa Microlink V.34 V34 Isdn / TL Modem Serial #70

Eicon Networks Diva Server Pcie Isdn Pri / E1-30 813-022-01 #80

AVM Fritz! Card Isa Isdn Controller Modem Card Fritzcard A1 3.0 FC A130FCP0796

JTEC J1200 ISDN TERMINAL ADAPTER MODEM INTERNET 2-PORT JUMP MONITOR

Dr.Neuhaus Niccy 1016 PC Card Isa 16-BIT Isdn Controller Modem U10 U12

Hayes Accura ISDN Terminal Adapter - USB Connection

AVM Fritz! Isdn Fritz! Card Pcmcia #KZ-1972

AVM C4 Active Isdn PCI Card 4 Ports #130

AVM C4 Active Isdn PCI Card 4 Ports 8 B-Channels 4x S0 #110

Siemens I-surf USB, Isdn Modem , #K-20-9

AVM Controller C2 Active Isdn PCI Card 4 B Channels 2x S0 Ports #80

Hagenuk, Databox Speed Viper, External Active Isdn PC Card. #SO-67

Speed Win PCI Isdn Card V.Sedlbauer Tiger100APC Chip 3201422

New Eicon Diva 2.02 Isdn PCI Adapter 305-189 Dialogic 800-675-03 810-314-03

AVM Fritz! PCI 2.1 Fax Modem Isdn Controller For Windows XP Vista 7 8 0 3/8in

Y-Cable 32 10/12ft For USB DSL Isdn Modem AVM Fritz! Card 2.0 Y-Cable

Top-Aktionspreis: AVM Fritz! Card Pcmcia 2.0 Isdn Card

AVM Active Isdn Controller B1 Pcmcia + Cable Active Card Faxing Callcentre

Router Bintec Bingo Plus Isdn System Bingo! Funkwerk Also For Faxing

AVM ISDN PCMCIA CONTROLLER A1 Faxing Fax With Notebook Also Modem Fritz! V420

Faxing With Your PC! AVM Fritz! Card PCI V2.1 Isdn Modem Fritzcard Ok

AVM Fritz! PCI 2.1 Fax Modem Isdn Controller Modem For Windows XP Vista 7 8 10

AVM Fritz! Card PCMCIA 2.0 Isdn Card For Notebook

Fritz! Card AVM Isdn Controller A1 3.0 FC Isa Modem Vintage V426

Bintec Bi CM-X21 2MBIT From Bianca/Brick XL2 Isdn Router

AVM Fritz! 2.0 Card Pcmcia Isdn Modem for Notebook And Untra Quiet Fax O. Cable

Eicon Diva Isdn USB Modem 810-223-02 Adapter Faxing With PC And Notebook EC02

HERMSTEDT LEONARDO SP-PCI V2.2 ISDN CARD PCI

a-Dsl ADSL Over Isdn Modem Router NOKIA M111 Top Condition

AVM Isdn Controller Card B1 PCI V4.0 1MB Sram 9.00200 739 Fax Modem Vintage V425

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MOTOROLA NT1D NETWORK TERMINATION DEVICE 645750360010 NO AC WITH WARRANTY