mDNS is working with Bonjour

1. AT+MDNS – Set MDNS function
   ESP8266 softAP mode can not support MDNS. Do not contain special characters (for example, "."
   character), or use a protocol name (for example, "http"), when defining "host_name" and
   "server_name" for MDNS.
   AT+WPS – Set WPS function
   Example
   AT+CWMODE=1
   AT+WPS=1
   Command AT+WPS=
   Response OK or ERROR
   Parameter
   
   1 : start WPS function
   0 : stop WPS function
   AT+MDNS – Set MDNS function
   Example AT+MDNS=1, "espressif", "iot", 8080
   Command AT+MDNS=, , ,
   Response OK or ERROR
   Parameter
   
   1 : enable MDNS function
   0 : disable MDNS function
   MDNS host name
   MDNS server name
   MDNS server port
   
   

http://bbs.espressif.com/viewtopic.php?t=1714
https://cdn.sparkfun.com/assets/learn_tutorials/4/0/3/4A-ESP8266AT_Instruction_SetEN_v0.30.pdf
https://espressif.com/en/support/download/sdks-demos
https://espressif.com/en/support/download/overview?keys=&field_type_tid%5B%5D=14
http://bbs.espressif.com/