I have a Yeastar TG800 GSM Gateway for sale. I bought it and it turned out not to be what I needed. I turned it on but didn't use it. It's in like-new condition. Specifications: • 8 GSM ports - accepts 8 SIM cards • Supports 8 simultaneous calls • SIP protocol • WAN RJ45 port • Web interface management • Compatible with Asterisk, FreePBX, and others • Supports SMS • Comes with 8 antennas • Power: 100–240V Reason: Bought by mistake Condition: Like new Price: Negotiable Contact: WhatsApp