Documentation
1825 Duet Plus Application Notes and Compatibility
The 1825 Duet Plus Loud Ringer can be used with a wide range of telephones whether analog or digital.
For specific Office Ringer and Loud Ringer functionality with M2000, M3900, M7000, and T7000 terminals, the following application notes are provided (in Adobe Acrobat PDF format):
(If you not sure which Nortel telephone model or system you have, please refer to our Nortel Telephone Identifier Chart or contact Algo Support)
| Telephone Model / System | Application Note |
| M2006 | AN-0105 |
| M2008 | AN-0105 |
| M2216 | AN-0105 |
| M2616 | AN-0105 |
| M2250 Console | AN-0109 |
| M3901 | AN-0106 |
| M3902 | AN-0107 |
| M3903 | AN-0107 |
| M3904 | AN-0108 |
| M3905 | AN-0107 |
| M7100 | AN-0100 |
| M7208 | AN-0101 |
| M7310 | AN-0101 |
| M7324 | AN-0101 |
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| T7100 | AN-0100 |
| T7316 | AN-0101 |
| T7208 | AN-0101 |
| T7406 | AN-0110 |
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| Analog Trunk | AN-0102 |
| Analog Station | AN-0102 |
| AuxRing Contacts | AN-0103 |
| Norstar Doorphone | AN-0104 |
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| IP Phone 2002 | AN-0113 |
| IP Phone 2004 | AN-0113 |
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