This is our old Q&A Site. Please post any new questions and answers at

I'm trying to capture and replay VOIP conversations on my local network using Wireshark. I've tried multiple audio codecs and softphones but I'm unable to replay the audio using Telephony -> VOIP Calls -> Player -> Decode. Wireshark detects the VOIP call and shows the correct duration but every decode results in showing "Out of seq:1(100%)" and "Duration:0:00" in the RTP player. The traffic is not being encrypted and the sequence numbers in Wireshark seem to be fine. Any ideas?

asked 13 Sep '14, 10:00

Recurzion's gravatar image

accept rate: 0%

Update: I resolved this issue by setting up my own SIP server using FreePBX. I assume that this problem was somehow related to NAT-ing the traffic from my internal network to the SIP provider and then back to my other softphone on the internal network.

permanent link

answered 13 Sep '14, 17:29

Recurzion's gravatar image

accept rate: 0%

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 13 Sep '14, 10:00

question was seen: 2,692 times

last updated: 13 Sep '14, 17:29

p​o​w​e​r​e​d by O​S​Q​A