Hello. I have CCR1016 ROS 6.49.1 and IP-phone Avaya 4602SW+ in the same subnet. This phone doesn’t get IP from Mikrotik DHCP. Additional option besides 3 - router and 6 - DNS only 15. I believe I need some extra options?
If I use DHCP-server on Windows, phone gets address in few moments. Options are the same.
A quick Google suggests Avaya phones need Option 150 and Option 176. I have seen some phones that also need “next-server”.
https://support.avaya.com/public/index?page=content&id=SOLN175419&group=UG_PUBLIC
/ip dhcp-server option
add code=150 name=option-150 value="'10.69.171.251'"
add code=176 name=option-176 value="'MCIPADD=10.69.96.250,MCPORT=1719,TFTPSRVR=10.69.121.251'"
add code=242 name=option-242 value="'ConfigHttpSrvr=10.69.121.251'"
/ip dhcp-server option sets
add name=Avaya options=option-150,option-176,option-242