Works on Polycom phone models IP-301 IP-320 IP-321 IP-330 IP-331 IP-335 IP-430 IP-450 IP-501 IP-550 IP-560 IP-601 IP-650 IP-670 CX200 CX300 CX500 CX600 CX700 IP301 IP320 IP321 IP330 IP331 IP335 IP430 IP450 IP501 IP550 IP560 IP601 IP650 IP670. One end has no curl for the last 5 or 6 inches. Each is new, individually wrapped in a plastic sleeve.
Store brand very dark gray (aka black or charcoal) handset cord with a slight chocolate tint. We have sold hundreds of thousands of cords by this manufacturer. We buy them by the pallet, passing the savings on to you. They are made in China (like nearly all handset cords) and have gold plated contacts. They are lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE free.
Polycom part numbers are 2201-44300-025 2201-15942-001 2200-15987-025 2200-31400-001 2201-11301-001 2201-12320-001 2200-12375-025 2201-11402-001 2201-12450-001 2201-11500-001 2201-11501-001 2200-12550-025 2201-12560-001 2201-11600-001 2201-11601-001 2201-12630-001 2201-12670-001
Notice the pictures of this cord laying on a Polycom IP501, CX600 and the 9 foot version laying on an IP 321.
Relaxed the curly part of this cord is about 40 inches long, NOT 25 FEET. This manufacturer calls it a 25 foot cord because 25 feet of material is goes into the curling machine. This naming scheme is confusing, but it's the industry standard.
25 foot cords should not be used on desk phones unless precautions are taken. The cord needs to hang by its own weight to keep the coils from tangling. This holds true for any manufacturer. De-tanglers won't help.