It’s cost effective and helpful at the same time, in a few click you’ll be able to either host an application or you can also offload WiFi network functionality using some other application processor.
It comes with an AT command set firmware, and note that it’s pre-programmed as well, therefore, the WiFi ability becomes increasingly high almost as much as the WiFi shield. Since it’s powerful, it’s suitable for on-board processing and storage capability which results in making it able to integrate with applications and sensors, this entire process requires only minimal loading during runtime, minimal up-front development, and minimal external circuitry since its degree of on-chip integration is really high enough for that (front-end module is included which occupies minimal PCB area). In addition to all that, in VoIP applications, the APSD is supported from ESP8266, and self-calibrated RF is what allows it to work under all conditions that are operating, (external parts in RF are not required).
Do you want to know more information about the ESP8266? Check the documents sections and there will be many information, instructions, as well as resources regarding this matter. Available in Dubai, UAE, Oman, and Qatar.