Hi,

i noticed a weird behavior in 4.2 branch with this kamailio.cfg (snippet)

#!substdef "!UDP_SIP!udp:MY_IP_ADDRESS:5060!g"
#!substdef "!TCP_SIP!tcp:MY_IP_ADDRESS:5060!g"
listen=UDP_SIP
listen=TCP_SIP

####### Routing Logic ########
route
{
# log the basic info regarding this call
xlog("L_INFO", "$ci|start|recieved $oP request $rm $ou");
.....
}

when clients using TCP send a SUBSCRIBE we get log info that it is a UDP operation.
when we send the first notify we get tcp errors.
for reference, i'm using Bria 4 in testing.

Dec 20 16:49:29 kamailio-05 kamailio[5085]: INFO:

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