What should be command to make NMAP return also name of device connected to the SIP port? I mean to retrieve SNMP device name (sysName.0) system name of the device (router, VoIP, etc) if this device have SNMP enabled.
nmap -p 5060 -sU -P0 21.12.32.123/24
So probably we should also query snmp on all devices it discovers.