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One way Audio

Discussion in '3CX Phone System - General' started by smontano, Jan 3, 2010.

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  1. smontano

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    One way audio problem. Im using as voip gateway SAP3102 FXO for PSTN and FXS for internal extension.
    My 3cx server is behind a linksys router WRT54GL as well as my SAP3102. Im able to inbound/oubound from VOIP to PSTN and viceversa.
    On my WRT54GL i forwarded RTP ports (10000-20000).
    On my 3CX, under network (external) i specified 10000 to 20000, under internal 7000 - 7499
    I have in another site a Linksys PAP2, this is able to register to my 3CX. When i call from my internal extension E.I. 101 to this external PAP2 E.I. 102, they can hear me, but i cant hear them.
    My local subnet is 172.16.1.0/28.

    On the server logs, theres no RTP packets. but i do see im using port 7001, instead of 10000 to 20000. I modified the 3CXphonesystem.ini file adding [Network] LocalSubnets=172.16.1.0/28. But seems it doesnt take it.

    Does sombody has an idea?
     
  2. smontano

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    I forgot to add:

    All my setup works perfect with asterisk, i just want to give a try with 3CX. I also played with re-invite and PBX audio options. I disabled my windows firewall. Im almost 100% sure is 3CX bug and not a port forward issue.
    Im using a DDNS so my external ATA can connect to my PBX server. STUN server is able to resolve my DDNS.

    Ideas?
     
  3. dab

    dab

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    What say's the 3CX "Firewall Checker"?
     
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  4. smontano

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    I just did the test for ports between 10000 and 10100 (for 20000, displays a lot =) ):

    3CX Firewall Checker, v1.0. Copyright (C) 3CX Ltd. All rights reserved.

    <14:08:56>: Phase 1, checking servers connection, please wait...
    <14:08:56>: Stun Checker service is reachable. Phase 1 check passed.
    <14:08:56>: Phase 2a, Check Port Forwarding to UDP SIP port, please wait...
    <14:08:57>: UDP SIP Port is set to 5060. Response received correctly with no translation. Phase 2a check passed.

    <14:08:57>: Phase 2b. Check Port Forwarding to TCP SIP port, please wait...
    <14:08:57>: TCP SIP Port is set to 5060. Response received correctly with no translation. Phase 2b check passed.

    <14:08:57>: Phase 3. Check Port Forwarding to TCP Tunnel port, please wait...
    <14:08:58>: TCP TUNNEL Port is set to 5090. Response received correctly with no translation. Phase 3 check passed.

    <14:08:58>: Phase 4. Check Port Forwarding to RTP external port range, please wait...
    <14:09:10>: UDP RTP Port 10000. Response received correctly with no translation. Phase 4-01 check passed.
    <14:09:10>: UDP RTP Port 10001. Response received correctly with no translation. Phase 4-02 check passed.
    <14:09:10>: UDP RTP Port 10002. Response received correctly with no translation. Phase 4-03 check passed.
    <14:09:10>: UDP RTP Port 10003. Response received correctly with no translation. Phase 4-04 check passed.
    <14:09:10>: UDP RTP Port 10004. Response received correctly with no translation. Phase 4-05 check passed.
    <14:09:10>: UDP RTP Port 10005. Response received correctly with no translation. Phase 4-06 check passed.
    <14:09:10>: UDP RTP Port 10006. Response received correctly with no translation. Phase 4-07 check passed.
    <14:09:10>: UDP RTP Port 10007. Response received correctly with no translation. Phase 4-08 check passed.
    <14:09:10>: UDP RTP Port 10008. Response received correctly with no translation. Phase 4-09 check passed.
    <14:09:10>: UDP RTP Port 10009. Response received correctly with no translation. Phase 4-10 check passed.
    <14:09:10>: UDP RTP Port 10010. Response received correctly with no translation. Phase 4-11 check passed.
    <14:09:10>: UDP RTP Port 10011. Response received correctly with no translation. Phase 4-12 check passed.
    <14:09:10>: UDP RTP Port 10012. Response received correctly with no translation. Phase 4-13 check passed.
    <14:09:10>: UDP RTP Port 10013. Response received correctly with no translation. Phase 4-14 check passed.
    <14:09:10>: UDP RTP Port 10014. Response received correctly with no translation. Phase 4-15 check passed.
    <14:09:10>: UDP RTP Port 10015. Response received correctly with no translation. Phase 4-16 check passed.
    <14:09:10>: UDP RTP Port 10016. Response received correctly with no translation. Phase 4-17 check passed.
    <14:09:10>: UDP RTP Port 10017. Response received correctly with no translation. Phase 4-18 check passed.
    <14:09:10>: UDP RTP Port 10018. Response received correctly with no translation. Phase 4-19 check passed.
    <14:09:10>: UDP RTP Port 10019. Response received correctly with no translation. Phase 4-20 check passed.
    <14:09:10>: UDP RTP Port 10020. Response received correctly with no translation. Phase 4-21 check passed.
    <14:09:10>: UDP RTP Port 10021. Response received correctly with no translation. Phase 4-22 check passed.
    <14:09:10>: UDP RTP Port 10022. Response received correctly with no translation. Phase 4-23 check passed.
    <14:09:10>: UDP RTP Port 10023. Response received correctly with no translation. Phase 4-24 check passed.
    <14:09:10>: UDP RTP Port 10024. Response received correctly with no translation. Phase 4-25 check passed.
    <14:09:10>: UDP RTP Port 10025. Response received correctly with no translation. Phase 4-26 check passed.
    <14:09:10>: UDP RTP Port 10026. Response received correctly with no translation. Phase 4-27 check passed.
    <14:09:10>: UDP RTP Port 10027. Response received correctly with no translation. Phase 4-28 check passed.
    <14:09:10>: UDP RTP Port 10028. Response received correctly with no translation. Phase 4-29 check passed.
    <14:09:10>: UDP RTP Port 10029. Response received correctly with no translation. Phase 4-30 check passed.
    <14:09:10>: UDP RTP Port 10030. Response received correctly with no translation. Phase 4-31 check passed.
    <14:09:10>: UDP RTP Port 10031. Response received correctly with no translation. Phase 4-32 check passed.
    <14:09:10>: UDP RTP Port 10032. Response received correctly with no translation. Phase 4-33 check passed.
    <14:09:10>: UDP RTP Port 10033. Response received correctly with no translation. Phase 4-34 check passed.
    <14:09:10>: UDP RTP Port 10034. Response received correctly with no translation. Phase 4-35 check passed.
    <14:09:10>: UDP RTP Port 10035. Response received correctly with no translation. Phase 4-36 check passed.
    <14:09:10>: UDP RTP Port 10036. Response received correctly with no translation. Phase 4-37 check passed.
    <14:09:10>: UDP RTP Port 10037. Response received correctly with no translation. Phase 4-38 check passed.
    <14:09:10>: UDP RTP Port 10038. Response received correctly with no translation. Phase 4-39 check passed.
    <14:09:10>: UDP RTP Port 10039. Response received correctly with no translation. Phase 4-40 check passed.
    <14:09:10>: UDP RTP Port 10040. Response received correctly with no translation. Phase 4-41 check passed.
    <14:09:10>: UDP RTP Port 10041. Response received correctly with no translation. Phase 4-42 check passed.
    <14:09:10>: UDP RTP Port 10042. Response received correctly with no translation. Phase 4-43 check passed.
    <14:09:10>: UDP RTP Port 10043. Response received correctly with no translation. Phase 4-44 check passed.
    <14:09:10>: UDP RTP Port 10044. Response received correctly with no translation. Phase 4-45 check passed.
    <14:09:10>: UDP RTP Port 10045. Response received correctly with no translation. Phase 4-46 check passed.
    <14:09:10>: UDP RTP Port 10046. Response received correctly with no translation. Phase 4-47 check passed.
    <14:09:10>: UDP RTP Port 10047. Response received correctly with no translation. Phase 4-48 check passed.
    <14:09:10>: UDP RTP Port 10048. Response received correctly with no translation. Phase 4-49 check passed.
    <14:09:10>: UDP RTP Port 10049. Response received correctly with no translation. Phase 4-50 check passed.
    <14:09:10>: UDP RTP Port 10050. Response received correctly with no translation. Phase 4-51 check passed.
    <14:09:10>: UDP RTP Port 10051. Response received correctly with no translation. Phase 4-52 check passed.
    <14:09:10>: UDP RTP Port 10052. Response received correctly with no translation. Phase 4-53 check passed.
    <14:09:10>: UDP RTP Port 10053. Response received correctly with no translation. Phase 4-54 check passed.
    <14:09:10>: UDP RTP Port 10054. Response received correctly with no translation. Phase 4-55 check passed.
    <14:09:10>: UDP RTP Port 10055. Response received correctly with no translation. Phase 4-56 check passed.
    <14:09:10>: UDP RTP Port 10056. Response received correctly with no translation. Phase 4-57 check passed.
    <14:09:10>: UDP RTP Port 10057. Response received correctly with no translation. Phase 4-58 check passed.
    <14:09:10>: UDP RTP Port 10058. Response received correctly with no translation. Phase 4-59 check passed.
    <14:09:10>: UDP RTP Port 10059. Response received correctly with no translation. Phase 4-60 check passed.
    <14:09:10>: UDP RTP Port 10060. Response received correctly with no translation. Phase 4-61 check passed.
    <14:09:10>: UDP RTP Port 10061. Response received correctly with no translation. Phase 4-62 check passed.
    <14:09:10>: UDP RTP Port 10062. Response received correctly with no translation. Phase 4-63 check passed.
    <14:09:10>: UDP RTP Port 10063. Response received correctly with no translation. Phase 4-64 check passed.
    <14:09:10>: UDP RTP Port 10064. Response received correctly with no translation. Phase 4-65 check passed.
    <14:09:10>: UDP RTP Port 10065. Response received correctly with no translation. Phase 4-66 check passed.
    <14:09:10>: UDP RTP Port 10066. Response received correctly with no translation. Phase 4-67 check passed.
    <14:09:10>: UDP RTP Port 10067. Response received correctly with no translation. Phase 4-68 check passed.
    <14:09:10>: UDP RTP Port 10068. Response received correctly with no translation. Phase 4-69 check passed.
    <14:09:10>: UDP RTP Port 10069. Response received correctly with no translation. Phase 4-70 check passed.
    <14:09:10>: UDP RTP Port 10070. Response received correctly with no translation. Phase 4-71 check passed.
    <14:09:10>: UDP RTP Port 10071. Response received correctly with no translation. Phase 4-72 check passed.
    <14:09:10>: UDP RTP Port 10072. Response received correctly with no translation. Phase 4-73 check passed.
    <14:09:10>: UDP RTP Port 10073. Response received correctly with no translation. Phase 4-74 check passed.
    <14:09:10>: UDP RTP Port 10074. Response received correctly with no translation. Phase 4-75 check passed.
    <14:09:10>: UDP RTP Port 10075. Response received correctly with no translation. Phase 4-76 check passed.
    <14:09:10>: UDP RTP Port 10076. Response received correctly with no translation. Phase 4-77 check passed.
    <14:09:10>: UDP RTP Port 10077. Response received correctly with no translation. Phase 4-78 check passed.
    <14:09:10>: UDP RTP Port 10078. Response received correctly with no translation. Phase 4-79 check passed.
    <14:09:10>: UDP RTP Port 10079. Response received correctly with no translation. Phase 4-80 check passed.
    <14:09:10>: UDP RTP Port 10080. Response received correctly with no translation. Phase 4-81 check passed.
    <14:09:10>: UDP RTP Port 10081. Response received correctly with no translation. Phase 4-82 check passed.
    <14:09:10>: UDP RTP Port 10082. Response received correctly with no translation. Phase 4-83 check passed.
    <14:09:10>: UDP RTP Port 10083. Response received correctly with no translation. Phase 4-84 check passed.
    <14:09:10>: UDP RTP Port 10084. Response received correctly with no translation. Phase 4-85 check passed.
    <14:09:10>: UDP RTP Port 10085. Response received correctly with no translation. Phase 4-86 check passed.
    <14:09:10>: UDP RTP Port 10086. Response received correctly with no translation. Phase 4-87 check passed.
    <14:09:10>: UDP RTP Port 10087. Response received correctly with no translation. Phase 4-88 check passed.
    <14:09:10>: UDP RTP Port 10088. Response received correctly with no translation. Phase 4-89 check passed.
    <14:09:10>: UDP RTP Port 10089. Response received correctly with no translation. Phase 4-90 check passed.
    <14:09:10>: UDP RTP Port 10090. Response received correctly with no translation. Phase 4-91 check passed.
    <14:09:10>: UDP RTP Port 10091. Response received correctly with no translation. Phase 4-92 check passed.
    <14:09:10>: UDP RTP Port 10092. Response received correctly with no translation. Phase 4-93 check passed.
    <14:09:10>: UDP RTP Port 10093. Response received correctly with no translation. Phase 4-94 check passed.
    <14:09:10>: UDP RTP Port 10094. Response received correctly with no translation. Phase 4-95 check passed.
    <14:09:10>: UDP RTP Port 10095. Response received correctly with no translation. Phase 4-96 check passed.
    <14:09:10>: UDP RTP Port 10096. Response received correctly with no translation. Phase 4-97 check passed.
    <14:09:10>: UDP RTP Port 10097. Response received correctly with no translation. Phase 4-98 check passed.
    <14:09:10>: UDP RTP Port 10098. Response received correctly with no translation. Phase 4-99 check passed.
    <14:09:10>: UDP RTP Port 10099. Response received correctly with no translation. Phase 4-100 check passed.
    <14:09:10>: UDP RTP Port 10100. Response received correctly with no translation. Phase 4-101 check passed.


    Application exit code is 0
     
  5. SY

    SY Well-Known Member
    3CX Support

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    What is the source of the "Im almost 100% sure is a 3CX problem"?
    How does STUN server "is able to resolve my DDNS"?

    Thanks
     
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  6. smontano

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    Sorry for the DDNS resolve. I mean, it does resolve my external IP.

    15:24:48.191 [CM506001]: STUN request to resolve SIP external IP:port mapping is sent to STUN server 64.69.76.21:3478 over Transport 172.16.1.10:5060

    On my router, i forwarded this ports to my 3CX PBX
    5060 - 5090
    10000-20000

    On my PBX
    Internal ports: 10000 - 10010
    External ports: 10011 - 10100

    I just did another call:
    15:36:52.693 [MS105000] C:13.2: No RTP packets were received:remoteAddr=189.161.91.69:49212,extAddr=0.0.0.0:0,localAddr=172.16.1.10:10006

    As i understand, it taking this call as internal and not external
     
  7. SY

    SY Well-Known Member
    3CX Support

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    Sorry but... Could you please answer questions first.

    Thanks

    p.s. "As i understand, it taking this call as internal and not external". Yes you are right.
     
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  8. smontano

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    when i mentioned 100% sure its a 3CX problem, is because with asterisk it works fine using port forwarded, all calls to external ATA (internet) works fien.. no one way audio problem.

    For the STUN server, what i was trying to say, is my external ATA's can resolve my DDNS. sorry for that =(
     
  9. SY

    SY Well-Known Member
    3CX Support

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    Could you please provide more information which is not bound to "*"? (see "p.s." in my post)

    p.s. I hope you have read the http://www.3cx.com/forums/forum-rules-read-to-get-answers-93.html
     
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