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| 1. | 
Model # RCOS | | One per RCOU. The RCOS attaches to the RCOU to provide 4 additional Loop Start CO / PBX / Centrex line circuits. Read More
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$59.99
ON SALE NOW!
|  Detail Box
Regular Price: $149.99
You Save: $90.00 (60%)
In Stock |
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| 2. | 
Model # RCOU | | Provides 4 CO/PBX/Centrex loop start lines. Maximum 1 RCOU per DK40 system. 1 for each 4 Loop Start CO / PBX / Centrex lines on DK280/DK424 systems. Accepts RCOS. Read More
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$62.99
ON SALE NOW!
| Detail Box
Regular Price: $212.99
You Save: $150.00 (70%)
In Stock |
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| 3. | 
Model # ADKU1A | | Provides 8 digital station ports on CTX100. Read More
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$89.97
| Detail Box
In Stock |
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| 4. | 
Model # ARCS1A | | One per processor PCB for connection of DTMF standard telephone, DISA lines, DTMF DID lines, Tie lines, Voice Mail devices, or built-in Auto Attendant. Mounts on the ACTU1A processor....Read More
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$99.97
| Detail Box
In Stock |
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| 5. | 
Model # BDKU | | Used instead of PDKU2's. Provides 8 digital station ports for connection of 3000-series or 2000-series DKTs, DSS Console, DDCB, or CTX Attendant Console. This unit has connectors for an 8-circut subassembl...Read More
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$107.97
| Detail Box
In Stock |
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| 6. | 
Model # BDKS1A | | Provides 8 additional digital station ports. Mounts on BDKU1A. Read More
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$399.97
| Detail Box
In Stock |
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| 7. | 
Model # RSTU3A | | Provides 8 standard telephone station ports. 1 port per DTMF or rotary telephone, or peripheral device such as Voice Mail, Auto Attendant, fax, etc. 1 port per off-premises station, type OL13B line. Maximu...Read More
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$519.97
| Detail Box
In Stock |
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| 8. | 
Model # RPTU1 | | Provides 23 channels for ISDN PRI service on CTX670, CTX100 or DK424i, and 12 channels for DK40i (requires R4.3). Network connection using RPTU2A PRI interface requires an external CSU. Requires RPRI-CBL-KIT. Read More
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$879.97
ON SALE NOW!
| Detail Box
Regular Price: $2,030.00
You Save: $1,150.03 (57%)
In Stock |
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| 9. | 
Model # RDTU2 | | Provides 24 channels for T1 Service. Network connection requires an external CSU. Each RDTU requires 1 NDTU cable. Maximum 2 per RCTUBA/BB systems. Maximum 6 per RCTUC/D system. Read More
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$949.97
ON SALE NOW!
| Detail Box
Regular Price: $1,650.00
You Save: $700.03 (42%)
In Stock |
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| 10. | 
Model # RSTS | | 1 per RDSU. The RSTS attaches to the RDSU to provide 2 additional standard station ports. For DK40I/DK424/DK424I/CTX100/CTX670. Read More
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$109.97
| Detail Box
In Stock |
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| 11. | 
Model # AETS1A | | Toshiba Strata AETS1A is a Network Interface Card ethernet Subassembly for CTX100 is an ethernet card, allowing you or your telephone system administrator to dial into your telephone system on site. Thi...Read More
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$156.75
| Detail Box
In Stock |
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| 12. | 
Model # RDSU | | 1 per 4 digital station ports plus 2 standard station ports. Mounts in Expansion KSU. Maximum 2 RDSU per DK40 system. For DK40I/DK424/DK424I/CTX100/CTX670. Read More
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$182.97
| Detail Box
In Stock |
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| 13. | 
Model # BIOU1A | | Provides four-zone paging, three MOH inputs with volume control, four control relays, background music (BGM) mute, and a 600 ohm or 3-watt amplifier page output. Maximum 2 BIOU per CTX670/100 system. Read More
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$253.50
| Detail Box
In Stock |
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| 14. | 
Model # REMU1 | | Provides 4 E&M tie line circuits (type 1 or 2, 2-wire or 4-wire). Maximum 1 REMU per DK40 system (mounts in expansion KSU). Immediate Start or Wink Start. K4RCU3 required for DTMF operation in DK40/DK40i...Read More
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$290.97
ON SALE NOW!
| Detail Box
Regular Price: $790.99
You Save: $500.02 (63%)
In Stock |
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| 15. |
Model # RCIS1 | | 1 per RCIU. The RCIS installs piggy-back onto the RCIU to provide an additional 4 Caller ID circuits, totaling 8 per slot. CO lines are looped through the RCIS and into the RCOS. Read More
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$299.97
| Detail Box
In Stock |
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| 16. | 
Model # RDDU1 | | Provides 4 DID line circuits. Mounts in the Expansion KSU. Maximum 1 RDDU per DK40 system. 1 for each 4 DID lines on DK280/DK424/DK424i system. K4RCU3 required for DTMF operation on DK40 systems. RRC...Read More
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$299.99
ON SALE NOW!
| Detail Box
Mfg. List Price: $490.00
Regular Price: $399.99
You Save: $190.01 (39%)
In Stock |
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| 17. | 
Model # RCIU2 | | 1 RCIU2 for each 4 loop start lines (used in conjunction with an RCOU/RCOS) or ground start lines (used in conjunction with an RGLU) to provide Caller ID. The RCIU2 accepts the RCIS subassembly. CO line...Read More
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$339.97
| Detail Box
In Stock |
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| 18. |
Model # ABTC1A-3M | | Connects CTX100 Cabinet power supply battery charger to reserve batteries. Read More
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$29.97
| Detail Box
In Stock |
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| 19. |
Model # PBTC-3M | | 1 per DK14/DK16/DK16e/DK40/DK40i system to connect power supply battery charger to customer supplied reserve batteries. 1 per DK280/DK424 cabinet to connect power supply battery charger to customer supplie...Read More
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$79.97
| Detail Box
In Stock |
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| 20. |
Model # ABCS1A | | One per cabinet required to trickle charge reserve batteries for battery backup. Read More
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$89.97
| Detail Box
In Stock |
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