Uvital 100 Feet Telephone Landline Extension Cord Cable Line Wire with Standard RJ-11 6P4C Plugs(White 30.5M,1Pack)
Brand: Uvital
Color: White(1 Pack)

Uvital 100 FEET TELEPHONE LANDLINE EXTENSION CORD CABLE LINE WIRE WITH STANDARD RJ-11 6P4C PLUGS(White 30.5M,1PCS) Product structure: * conductor: copper * wire diameter: 0.4 copper(single) * size: 30.5 meters (plus or minus two percent) * line core: 4 root * insulation: HDPE * wire shield: PVC Product features: Single insulated wire according to the different pitch twisted pair, and with specified color combinations to identify line, reduce the mutual interference between the clues crosstalk, power consumption is small. Scope of application: Telecommunication engineering wiring, links between indoor telephone communication cable system wiring, voice communication system between the main line, program-controlled switches, phone, fax and digital television.

You can use from wall phone line to a telephone. Male RJ11 to male RJ11 Telephone Cables are used for standard RJ21 phones.For use with telephones, fax machines, modems, answering machines, etc.Not work as a Ethernet Cable (Example: internet box to xbox)
The Extension cord is good to long-distance communication for your desk phone or office phone .Extended length coiled cord is provided Extra Length for working in the office or at home
The Uvital Phone line length of 33 ft, 6p4c connector. Not applies to VOIP phone and Cat 5 is Category 5 UTP cable, typically used for Ethernet with a 8P8C (RJ45) plug. This is standard telephone cord with RJ-21 for use with landline telephones, fax machis, dial-up modems, etc.c.
Universally compatible Telephone Handset Extension Cord Cable with all telephones manufacturers including AT&T, NEC, Rolm, ITT, & Tie.You can use them as replacements for those and Avaya 5420 and 5620SW IP phones.
Worry-free 18-month warranty:made from high quality material to last in weather conditions "