| Priority | Name | Matching Patterns | Deploy Patterns |
| 1 | REGISTER to Server1 | &lb.register = 1 $request = ^REGISTER To = sip:(.+)@ $addr = (.+) $port = (.+) | To = sip:%1@172.16.0.2 &&lb.register = 2 &net.sip.replacecontact = false &net.sip.replacecontact.nat = false X-Remote = %2:%3 |
| 2 | REGISTER to Server2 | $request = ^REGISTER To = sip:(.+)@ $addr = (.+) $port = (.+) | To = sip:%1@172.16.0.3 &&lb.register = 1 &net.sip.replacecontact = false &net.sip.replacecontact.nat = false X-Remote = %2:%3 |
| 3 | INVITE to UA | $request = ^INVITE $addr = ^172.16.0.3|^172.16.0.2 X-Remote = (.+) | $target = %1 $rtp = off $continue = false |
| 4 | INVITE to Server1 | &lb.invite = 1 $request = ^INVITE To = sip:(.+)@ | To = sip:%1@172.16.0.2 $rtp = off &&lb.invite = 2 |
| 5 | INVITE to Server2 | $request=^INVITE To = sip:(.+)@ | To = sip:%1@172.16.0.3 $rtp = off &&lb.invite = 1 |