7 pair communication cable/Telephone Cable:

7 Pair round cable
Inner conductor : 0.5mm CCS /1.0mm PE
Al-foil shield
Transparent mylar covered
0.5mm CCA ground wire and rip cord
Outer jacket O.D. 5.5mm
250m/roll
Other more multi-pair telephone cable available: 2Pair ,3Pair,5Pair ,10Pair ,etc .