You can find legacy and refurbished equipment through specialized telecom resellers and general online marketplaces:
Buying "old" or refurbished phone systems can save a business up to 50–80% compared to new hardware costs. This market typically splits into two categories: for niche uses (theatre, home decor) and refurbished business systems (PBX, VoIP) for cost-conscious organizations needing reliable office infrastructure. Where to Buy Old Phone Systems buy old phone systems