Can v18 do consistent NAT?

Question

I see Sonicwall can do Consistent NAT as per link below 
 Consistent NAT enhances standard NAT policy to provide greater compatibility with peer-to-peer applications that require a consistent IP address to connect to, such as VoIP. 
 Consistent NAT uses an MD5 hashing method to consistently assign the same mapped public IP address and UDP Port pair to each internal private IP address and port pair. 
 https://www.sonicwall.com/support/knowledge-base/configuring-consistent-nat-network-address-translation/170505836533942/ 
 
 Can XG v18 do this or is it on the roadmap?

LuCar Toni · Accepted Answer

I would say, no. There is no mechanism to map the Ports via MD5. 
 But as i read the Sonicwall page, i saw following line: 
 NOTE: Enabling Consistent NAT causes a slight decrease in overall security, because of the increased predictability of the address and port pairs. Most UDP-based applications are compatible with traditional NAT. Therefore, do not enable Consistent NAT unless your network uses applications that require it.

Thats not good at all. 
 
 Sophos has some other VOIP approaches. We use SIP helper to read the SIP Trunk and open the ports, needed by the VOIP Application. 
 https://community.sophos.com/kb/en-us/123523 
 
 From some other sites: 
 Consistent NAT helps the device to have the same external port opened every time it connects. In this way, if the UDP port does timeout, the next time the phone makes an outbound call, that original port is re-opened thereby allowing the next inbound call to successfully arrive.