Homemade reverting ring trunk
By Rick Walsh, ; posted January 13, 2008; hits 1194
 |
| Homemade reverting ring trunk built from a salvaged PBX selector-connector. Provides a test ring back to a bridged ringer. |
By Rick Walsh, ; posted January 13, 2008; hits 1194
|
| Homemade reverting ring trunk built from a salvaged PBX selector-connector. Provides a test ring back to a bridged ringer. |