Assertion: phone system's line | /r/CapableOf | use adapter
Facets:
Source sentences:
text: At the end of the wire you can break out the 2 lines using an adapter which allows you to connect line 1 to an RJ-11 plug and line 2 to another RJ-11 plug, or if you have a 2-line phone, you can just plug an RJ-14 plug into the phone.