Compatibility - Telephone landline cord is for RS-232 modular adapters for dumb terminal hookups and other serial/parallel extension applications requiring a cable phone cord. Reliable - Long phone cord is a straight through-pinned cable for a cost-effective and reliable phone cord for land line use. Durable - This phone cable is constructed from heavy-duty 28 AWG silver satin wire, making it durable for wired telephone and data applications. Use - Landline phone cord works for voice and data applications that don't require high data rates. Telephone Cable - One (1) 14-foot silver Straight Modular Cable for a Wall Phone Jack.