Telephone Accessories | Shop Amazon Shop for Telephone Accessories in Office Products on Amazon. Shop for Telephone Accessories in Office Products on Amazon. Skip to main content. Try Prime 25 Feet Black Phone Telephone Extension Cord Cable Wire with Standard RJ-11 Plugs by True Decor 82. price $ 89. 98. $99 Telephone Accessories | Graybar Store Telephone Accessories Shop By. Stocked to Ship to Change Location. Stocked at branch Change Location. Filter by Press enter to collapse or expand the menu. Modular Line Jack For Phone Base, 6-Position, 6-Wire. Mfr # AT623P-6 View Product. Compare Compare. Allen Tel. Push-to-Talk Handset Assembly-25 Foot Cord. Mfr # GB6900-6-25-213 View Product.