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  1. one way audio - no really !

    OOPS: below relates to the other post I made with heading "wireshark equivalent for ADSL router" - the problem with voiptalk is no longer occurring and was I think due to a problem at their end. This issue with 30 sec disconnect due to no ACK is still puzzling me though if you do have time to...
  2. wireshark equivalent for an adsl router ?

    OK thanks for that. I did have hardware VPN setup, but wanted to avoid rtp stream for calls via voip provider having to be routed by 3cx so wanted to make the extension external again. Ie. external extension places call via voiptalk - I want voiptalk to send rtp stream direct to external...
  3. wireshark equivalent for an adsl router ?

    Update: Just "for fun", I changed the 3cx SIP port in the General settings to 5061 instead of 5060. After doing this and updating external extension to register to 5061 it all works fine and the final ACK is now received. So all working, but still interested to know if anyone can explain why...
  4. wireshark equivalent for an adsl router ?

    I am trying to diagnose problem with external extension and wondering if there is a way to trace packets that the router sends to the internet. The external extenstion is a Thomson 780WL ADSL router with built in VOIP so there is no firewall or STUN stuff to configure. When external extension...
  5. one way audio - no really !

    Thanks Nick and wzaatar for your replies. It's all up and running now - basically problem with the voip provider. I had already set up the STUN, static port forwarding, passed the firewall test, etc. The wireshark showed all packets doing the right kind of thing, but just the audio not being...
  6. one way audio - no really !

    Thanks MIke. I changed the outbound proxy back to nat.voiptalk.org and now it is all working OK with no disconnects. Basically everything is now set up as it was before I tried to fix the issue and it is working. I COULD SCREAM !!! What I think is voiptalk must have had some probs with their...
  7. one way audio - no really !

    Have now read some of RFC3261 and think the issue is the ACK message, but not sure if this is fault of 3cx, voiptalk or my network config. I look at the wireshark exchanges between 3cx and voiptalk and see like this: 3cx sends INVITE to voiptalk: via = internal IP of 3cx, port 5060 contact =...
  8. one way audio - no really !

    Just looked in Wireshark and I think there is some issue with things not getting sent back. I see these messages: 480 5.095750 77.240.48.94 192.168.0.12 SIP/SDP Status: 200 OK, with session description 501 5.198655 192.168.0.12 77.240.48.94 SIP Request: ACK...
  9. one way audio - no really !

    I managed to get calls working by changing my outbound proxy from nat.voiptalk.org:5065 to just voiptalk.org:5060 - the same as the registrar details. Now call audio is working both ways, but outbound calls drop after 20 s. The remote party line goes dead and they hear the disconnect tone; on...
  10. one way audio - no really !

    The following is set in 3cx in this order for the line voiptalk: G-711 U-law G-711 A-law GSM-FR on my TA it is : G711u G711a g723.1 g726_16 g726_24 g726_32 g726_40 g729
  11. one way audio - no really !

    This is the SDP set up: v=0 o=root 17232 17232 IN IP4 77.240.48.211 s=session c=IN IP4 77.240.48.209 t=0 0 m=audio 53940 RTP/AVP 8 0 3 96 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:3 GSM/8000 a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv...
  12. Any come across any wifi outdoor entry units?

    This unit is compatible with the Siemens S58 DECT SIP/PSTN dual phone range: http://www.cordless-phones.uk.com/electronics/video-door-entry-systems/siemens-gigaset-hc450-intercom/?referrer=froogle&keyword=siemens%2Bsiemens%2Bgigaset%2Bhc450%2Bintercom
  13. one way audio - no really !

    Now I found some more packets called RTCP. I am seeing packets from my TA that say stuff like: sent count = 154, highest sequence number received = 4030 and from voiptalk that say: sent count = 224, highest sequence number received = 10524 so it seems like voiptalk IS receiving the RTP stream...
  14. one way audio - no really !

    OK I found something called Wireshark that seems to do the exact job. From what I can see on another call I analysed the RTP is flowing from TA to 3CX and Voiptalk and vice versa: 27 4.774090 192.168.0.50 192.168.0.12 RTP PT=ITU-T G.711 PCMA, SSRC=0x4A4B0BF1, Seq=10305, Time=1995069375 28...
  15. one way audio - no really !

    Am trying to help myself as much as poss. but could someone confirm my understanding is right. Based on these logs: 10:56:17.765 C:1.1:Offer received. RTP connection: 192.168.0.50:7302(7303) 10:56:17.968 C:1.2:Offer provided. Connection(proxy mode): 80.229.82.249:9000(9001) 10:56:20.546...
  16. one way audio - no really !

    I know a lot of probs with one way audio due to firewall, but I really think mine is set up OK and am non-plussed. After recent upgrade to version 6.1 people can no longer hear me, but I can hear them. This is the set up: 3cx running on windows XP behind linksys wag325n router. ports 9000-9015...
  17. How to set up QoS on Linksys WAG325N

    I assume you are running 3cx on a PC behind the WAG325N and have already set it up to connect to your ISP via the ADSL connection. First thing I had to do was assign the PC on which I am running 3cx a static IP address (my previous Netgear router had feature callled DHCP address reservation...
  18. Recommended FXO gateway

    I currently have a Linksys SPA3102 and am finding the call quality is very poor. I've spent hours looking on the internet and trying different tweaks to the SPA/PSTN gain, echo cancellation and suppression settings, but it seems basically impossible to get decent call quality. Can anyone...
  19. How to set up QoS on Linksys WAG325N

    I have partly answered my question because I set it up like this: 9000-9015 UDP, 5060 TCP -> priority high the received audio started to break up. I changed the port range to 9000-65534 UDP, 5060 TCP -> priority high and it was OK. It seems therefore that the RTP port range is extending beyond...
  20. How to set up QoS on Linksys WAG325N

    I've just changed my router to Linksys 325N that supports QoS and am wondering how to set up QoS to prioritise my VOIP. Am I right in thinking I should define a new application, port range 9000-9015 UDP (outbound ports) and set the priority to high ? Do I also need to add the SIP port 5060 ? Or...
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