Assertion: phone system's line | /r/ObjectUse | used in most other countries
Facets:
Source sentences:
text: A Digital Signal 1 (DS1) circuit carries 24 DS0s on a North American or Japanese T-carrier (T1) line, or 32 DS0s (30 for calls plus two for framing and signaling) on an E-carrier (E1) line used in most other countries.