Panasonic KX-DT635 Quick Reference Manual page 27

6.4 Connections
6.4 Connections
*1
*2
*3
*4
*5
*6
*1 The telephone line cord (included)
*2 Connect to a PBX
*3 Handset cord (included)
*4 To a handset
*5 EHS headset jack
*6 Headset jack
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