Hello.
I try to use Cisco SPA112 with Fax, my SIP server is Asterisk and it behind the NAT (ASA5505).
I read about CSCtr86607 but I use ASA 9.1 software and sip inspection is on.
I try to disable t.38 but also fax send is fail.
May be anybady know, what version of cisco ASA software can work with t.38 withoth disable sip inspection?
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Helping seriously ill children, all together. All information about this, is posted on my blog