Question and response
Question
dig ims.telia.com. NAPTR
Answer
ims.telia.com. 3600 NAPTR 50 51 "s" "SIP+D2T" "" _sip._tcp.ims.telia.com.
ims.telia.com. 3600 NAPTR 50 50 "s" "SIP+D2U" "" _sip._udp.ims.telia.com.
Authority
The response has no authority records.
Additional
_sip._udp.ims.telia.com. 3600 SRV 0 0 5081 icscf.se.telia.net.
_sip._tcp.ims.telia.com. 3600 SRV 0 0 5081 icscf.se.telia.net.
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0