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Originally Posted by v164
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I've confirmed that the Atcom AT-530 does work with ";lr=on" (as well as the strictly-RFC 3261 ";lr"), so it works fine with Voxalot / SipBroker.
However I've now encountered another SIP-incompatibility problem. My new Japanese VSP sends SIP INVITE packets where the final line of the SDP body ends abruptly without a terminating CRLF ( 0x0d 0x0a ) (I wonder if that's included in the "SIP torture test"). The AT-530 doesn't like that, and rejects the call with 488. I've sent an email to Atcom asking them to make the firmware more liberal. I'm hopeful that they'll do that.