[SIP SIMPLE client] Question about dropping communication

[Alexander Dokovski]

Hi,

I developing a small application including Subscription - Notify 
process. I test my application  how it handle at different packet error 
rate. I observe that at low packet error rate i have a perfect 
connection and I don't have any problems, but at  high PER i get a talk 
drop and I cannot understand from where the error comes from. At the 
middle of the talk I receive a Notify message with subscription 
terminated but with '0' as error code which as I read in the sipcore 
development guide refers to some internal error of the sip core. Is it 
possible to  help me ?
To simulate packet error rate I use dummynet

this is a paste of the pjsip_log with occurence of the problem

http://pastebin.com/N1pBjmv9

Regards,
Alexander Dokovski