BSS Not propagating the ACK From UAC to UAS

skb007 · Post by **skb007** » Mon Aug 27, 2018 10:23 am

1. Brekeke Product Name and Version:3.8.5.2

2. Java version:1.8

3. OS type and the version: RHEL6.1

4. UA (phone), gateway or other hardware/software involved: sipp.351

5. Your problem: BSS is not passing/propagating the 200-ACK from UAC to UAS.

Set up:

sipp-uac --> BSS -->sipp-uas

Matching Patterns
$addr = 192.168.2.180
$request = sip:(.+)@
From = sip:(.+)@

Deploy Patterns
To = sip:%1@%192.168.2.130
From = sip:%2@192.168.2.56
$b2bua = false

Tata · Post by **Tata** » Mon Aug 27, 2018 11:24 am

Hi, It seems UAC is 192.168.2.180, UAS is 192.168.2.130 and SIP Server is 192.168.2.56. Is it correct?
Is ACK well-formed ?
Does the same issue happen even if you use another SIP client such as Linphone?

skb007 · Post by **skb007** » Mon Aug 27, 2018 11:29 am

Your IP assumptions are correct. ACK is well formed. If I remove the BSS from call flow and send the call from UAC(192.168.2.180) directly to UAS (192.168.2.130) then everything works fine.

Tata · Post by **Tata** » Mon Aug 27, 2018 2:32 pm

Have you try another SIP client instead of SIPP?

> If I remove the BSS from call flow and send the call from UAC(192.168.2.180) directly to UAS (192.168.2.130) then everything works fine.

Yeah.. because sipp doesn't have to forward SIP packets based on what SIP headers point.

Tata · Post by **Tata** » Tue Aug 28, 2018 11:31 am

If you paste SIP packets, INVITE, 180, 200 and ACK here, I can look at them.

skb007 · Post by **skb007** » Wed Aug 29, 2018 3:34 pm

I have installed the trial version of BSS and it is not happening anymore. Thanks for your help.