Hi Experts,   I am facing a problem on SIP phones over the public NAT source port on Meraki MX.    Problem: Multiple phones are sharing same Public source NAT ports in simultaneously calls to same destination (SBC).   Example:   Phone A makes an outbound call and Meraki MX assign 11786 as source RTP port and SBC assign 20398 for the call and while this is in progress, another SIP phone in same LAN makes a call to same SBC Meraki MX assign the source port (11786) and SBC assign a different port 20478. Due to the dulipcate RTP source ports has been used as above creating problem to with audio.   Question: How we can ensure that the RTP source is not shared in  simultaneous calls?   Experts your ASAP help would be high appreciated.   Regards   Faz ... View more