KX-TDA6181

Features : 
* 16-Port Loop Start Co Trunk Card (ELCOT16) 
* 16 Ports per Card 
* 4 Port w/ Power Failure Transfer 
* 1 Card Requires 1 Free Slot 
* Supports Up to two Optional (KX-TDA0193) 
* 8 Port Caller ID Card 
* Can be Mounted to Support Caller ID