the zenfone 9 that I bought has big problems with basic calls (cracking voice) and is not able to connect via roaming when I am abroad. Assistance is useless because they simply ask you to send them logs when they are aware of this problem (if you do a little bit of web search you will find tons of complains). Assistance is based in Czech Republic = I sent twice my phone to them and the phone was not in my availability for 1 month . Avoid
