procurement of different types of telephone cable and signal cable under itc dept.,stps. , cable,tele,50,pairx0.5mm # jelly filled,armoured additional data: annealed bare copper conductor, pe insulated, pe inner sheath , armoured, pe outer sheath, jelly filled telephone cable minimum 500 mtr. / drum, tolerance will be +/- 10% in drum length. , tele cable,20 pair,0.5mm,unarmoured forcomunication s/ws113c, 114c, cbltelephone cable,20 pair,0.5mm dia,unarmoured,annealed and seathed with pvc,twisted pair,bunched together in concentric layers and as per specification itd (s/ws113c,114c,cbl-7000) with latest ammendments additional data: pe insulated minimum 500 mtr. / drum, tolerance will be +/- 10% in drum length. , telephone cable,4 pair overhead overhead telephone cable additional data: annealed tinned copper conductor, pvc insulated, un-armoured, pvc outer sheath, telephone cable tolerance will be +/- 10% in drum length. 1 drum = 500 mtr. , single pair telephone cable additional data: annealed tinned copper conductor, pvcinsulated, un-armoured, pvc outer sheath, telephone cable minimum 500 mtr./ drum, tolerance will be +/- 10% in drum length.