BSS is not passing on the ACK (for 200 UK) from UAC to UAS.

[skb007]

1. Brekeke Product Name and Version:BSS Adv Ver

2. Java version:1.8

3. OS type and the version:RHEL7.5

4. UA (phone), gateway or other hardware/software involved: N/A

5. Your problem:

BSS is not passing on the ACK (for 200 UK) from UAC to UAS.

UAC is sending the call to BSS.
BSS uses the alias function and sends the call to UAS.
UAS answers the call and sends 200 OK to BSS.
BSS sends the 200 OK to UAC
UAC sends the ACK for 200 to BSS
BSS does not send the ACK to UAS. Which triggers the retransmission of 200 from UAS. Call disconnects after few tries.

Matching Patterns

$request = ^INVITE $addr = ^192.168.2.143$ To = sip:(.+)@ From = sip:(.+)@ $alias.lookup("%1") = (.+)

Deploy Patterns

To = sip:%3@192.168.2.141 From = sip:%2@192.168.2.56 $rtp = false $b2bua = true _Contact = <sip:%{$getSIPuser(To)}@%{$ifaddr($addr)}:5060>