$ORIGIN dnstest.my.local.lab.domain.
$TTL 15
@         IN SOA mysip.my.local.lab.domain. root.localhost. (
				6          ; serial
				30         ; refresh (30 seconds)
				15         ; retry (15 seconds)
				360         ; expire
				30         ; minimum (30 seconds)
				)
          IN NS  mysip.my.local.lab.domain.
sip1      IN A   192.168.1.10
sip2      IN A   192.168.1.11
_sip._udp IN SRV 1 50 5060 sip1
_sip._udp IN SRV 1 10 5060 sip2