Based on this product's specifications, here are some alternatives and similar models
VoIP telephone adapter Yeastar TA200
Summary description:
The Yeastar TA200 VoIP telephone adapter supports voice codecs G.168, G.711, G.729A, and G.729B, ensuring high-quality audio. It is compatible with fax protocols T.31/T.38 and certified for UDP, TCP, TLS, and SRTP. With dimensions of 58mm x 85mm x 24mm, it is compact and easy to integrate into any network setup. The adapter operates at an output voltage of 5V and current of 1A, making it efficient for various applications.