Using: Asterisk 1.2.10
OS: Linux ast2 2.6.9-39.0.2.ELsmp #1 SMP Thu Jul 13 06:56:04 CDT 2006 i686 i686 i386 GNU/Linux
I’m having trouble with the dtmf=rfc2833 that asterisk sends, it’s never accepted by my equipment at the other end (Tekelec T7000)
And I did some tcpdump, and after checking it in ethereal, it seems that the UDP packets that Asterisk sends for DTMF all have bad CHECKSUM
Checksum: 0x85ba [incorrect, should be 0x2390]
And in fact, all those packets are sent with checksum= 0x85ba
I cheked the release notes, and didn’t see anything about that in the newer version, but is it problem that is fixed in newer versions?