From the information I've found scattered around the internet, the PAP2T seem to be a later version of the PAP2 with more memory and the ability to support two concurrent g.729 calls. I have a large number of devices identifying themselves as "Linksys/PAP2-3.1.22(LS)" and a pretty large amount identifying themselves as "Linksys/PAP2T-5.1.3(LS)". We seem to suffer from the bug "Unit stops playing incoming RTP audio once it receives a 180/183 w/o SDP; regardless setting of <Sticky 183> parameter" which is fixed in 5.1.6. I'm therefore looking into upgrading all PAP2 and PAP2T units. The release notes for 5.1.6 lists both PAP2 and PAP2T but doesn't clearly state that they use the same .bin. What is the case here? Same .bin for both models or?
I have this problem too.