Microelectronics Analog Communications Handbook / 
Mitel 
 - Issue. 7  
 - Canada  Mitel  1990 
 - various paging, 
<br/><br/>General Information (Page-1), Analog Switches (Page-2), DTMF Signaling Components (Page-3), Line and Trunk Interfaces (Page-4-1), Modems and Support Components (Page-5), Custom Hybrids (Page-6), Digital Switches (Page-7), Primary Rate Interfaces (Page-8), Basic Rate Interfaces (Page-9), Rate Adaptors (Page-10), Codec and Digital  Phone Components (Page-11), ST-BUS Support Components (Page-12), Software (Page-13), Development Products (Page-14), Application Notes (Page-15). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunications engineering.
<br/><br/><label>Dewey Class. No.: </label>621.382,MIT