Quote:
Originally Posted by heartspeace
... Any thoughts or suggestions? Both are registered to voxalot from all I can see the same way using the same codecs.
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This issue could involve SIP re-invite. Furthermore one of the ATAs may be behind some kind of symmetric NAT router.
Firstly, make sure that you have filled in 'Outbound Proxy:' the same as you have for 'Proxy:'. Including the proxy's port number is mandatory if it's anything other than 5060. Also confirm that 'Use Outbound Proxy:' and 'Use OB Proxy In Dialog:' are both 'yes'.
I suggest you try the following experiment. As you are already using STUN, for both units, set "STUN Test Enable:" = yes. In Voxalot accounts for both units set "Symmetric NAT Handling." = yes.
Do your test calls again. If the problem persists; for both units set "NAT Mapping Enable:" = no.
Make test calls again. If audio is heard both ways at this point try setting "NAT Mapping Enable:" = yes in one of the units, then the other.
Ordinarily it's best to leave "NAT Mapping Enable:" = yes, however occasionally it's necessary to set "NAT Mapping Enable:" = no in order to disable Voxalot's SIP re-invite feature. If you must use "NAT Mapping Enable:" = no then hopefully it will be needed in one ATA only.