Obihai don't have any OBiLINE adapters in stock; so if you did want to go for the OBi202 and OBiLINE as a replacement for the OBi110 you're out of luck. That being said, would you want to? Given all the complaints about an echo being present when making/receiving calls using the OBiLINE adapter. Then again, Obihai have replaced the OBiWiFi adapter with the OBiWiFi5G
so maybe Obihai will replace the existing OBiLINE adapter too.
Currently Obihai offer for sale in the UK (via amazon) the OBi100, OBi110, OBi202 and OBiBT. It's likely that Obihai are simply waiting for current stock to deplete (which will help get rid of the OBi1xx series) before ordering in new stock from the states.
Echo44 wrote:So is there a view on an appropriate replacement device?
I don't think there is one! The Cisco SPA232D is a good contender but it isn't as flexible with it's configuration unlike the Obi110.