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| | 1. |  Model # SP7100-00 | | Adds 3 CO lines & 8 stations. Maximum 2 for 9x24 configuration or 1 for 12x16 configuration. Up to 4 may be used with DHS-E for 18x48 configuration....Read More
| $169.97 ON SALE NOW!
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Regular Price: $219.97
You Save: $50.00 (23%)
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| | 2. |  Model # SP7420-00 | | Convert 1 digital station port into 2 analog ports. Requires 1 station port. Read More
| $114.97 ON SALE NOW!
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Regular Price: $159.97
You Save: $45.00 (28%)
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| | 3. |  Model # SP7440-00 | | Convert 1 digital station port into 2 analog ports. Mounts in analog adapter. Requires 1 station port and SP7420-00 analog adapter. Read More
| $119.97
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| | 4. |  Model # SP7480-00 | | Used to interface caller ID with up to 9 incoming (CO) lines. Requires Option Board (SP7110-00) and minimum FP2 system software. Read More
| $309.97
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