One Way Audio Problem

@neoian1277 wrote:

Hello everyone,

I have a client that has got a FreePBX installation setup and running, however we seem so be having problems. First abit of info about the network, there are currently 6 branches connected to the HQ via MPLS links the HQ has a subnet of 192.168.0.X (the FreePBX server is 192.168.0.248/24) with the other branches being 192.168.X.X etc. There is a Endian Firewall at the HQ as well as a Juniper SRX for the internet and MPLS breakout, all other branches have asus routers with tomato firmware installed. From the branches we have connectivity to the FreePBX server.

The problems start when calling the branches, we can hear them but they cannot hear us at all, i will include a debug from HQ to a branch office, any help would really be great

<--- SIP read from UDP:192.168.9.201:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK105219e6;rport=5060
From: "Nedson Phiri" ;tag=as65b438b4
To: ;tag=1848821140
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 102 INVITE
Contact:
Supported: replaces, path, timer
User-Agent: Grandstream GXP1400 1.0.7.11
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE
Content-Type: application/sdp
Content-Length: 589

v=0
o=9001 8000 8000 IN IP4 192.168.9.201
s=SIP Call
c=IN IP4 192.168.9.201
t=0 0
m=audio 5004 RTP/AVP 9 0 18 101
a=sendrecv
a=rtpmap:9 G722/8000
a=ptime:20
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 0 RTP/AVP 99 98 34
a=rtpmap:99 H264/90000
a=fmtp:99 redundant-pic-cap=0;parameter-add=0;packetization-mode=0;level-asymmetry-allowed=0
a=rtpmap:98 H263-1998/90000
a=fmtp:98 F=0;I=0;J=0;T=0;K=0;N=0;BPP=0;HRD=0
a=rtpmap:34 H263/90000
a=fmtp:34 F=0;I=0;J=0;T=0;K=0;N=0;BPP=0;HRD=0
a=sendrecv
<------------->
--- (12 headers 22 lines) ---
Found RTP audio format 9
Found RTP audio format 0
Found RTP audio format 18
Found RTP audio format 101
Found audio description format G722 for ID 9
Found audio description format PCMU for ID 0
Found audio description format G729 for ID 18
Found audio description format telephone-event for ID 101
[2015-09-03 14:55:49] WARNING[2688][C-000005e4]: chan_sip.c:10105 process_sdp: Ignoring video stream offer because port number is zero
Capabilities: us - (ulaw|g729|g722|h263|h263p|h264), peer - audio=(ulaw|g729|g722)/video=(nothing)/text=(nothing), combined - (ulaw|g729|g722)
Non-codec capabilities (dtmf): us - 0x1 (telephone-event|), peer - 0x1 (telephone-event|), combined - 0x1 (telephone-event|)
Peer audio RTP is at port 192.168.9.201:5004
Peer doesn't provide video
list_route: hop:
set_destination: Parsing for address/port to send to
set_destination: set destination to 192.168.9.201:5060
Transmitting (NAT) to 192.168.9.201:5060:
ACK sip:9001@192.168.9.201:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK6f5f7206;rport
Max-Forwards: 70
From: "Nedson Phiri" ;tag=as65b438b4
To: ;tag=1848821140
Contact:
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 102 ACK
User-Agent: FPBX-2.11.0(11.17.1)
Content-Length: 0

<--- SIP read from UDP:192.168.9.201:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK105219e6;rport=5060
From: "Nedson Phiri" ;tag=as65b438b4
To: ;tag=1848821140
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 102 INVITE
Contact:
Supported: replaces, path, timer
User-Agent: Grandstream GXP1400 1.0.7.11
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE
Content-Type: application/sdp
Content-Length: 589

v=0
o=9001 8000 8000 IN IP4 192.168.9.201
s=SIP Call
c=IN IP4 192.168.9.201
t=0 0
m=audio 5004 RTP/AVP 9 0 18 101
a=sendrecv
a=rtpmap:9 G722/8000
a=ptime:20
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 0 RTP/AVP 99 98 34
a=rtpmap:99 H264/90000
a=fmtp:99 redundant-pic-cap=0;parameter-add=0;packetization-mode=0;level-asymmetry-allowed=0
a=rtpmap:98 H263-1998/90000
a=fmtp:98 F=0;I=0;J=0;T=0;K=0;N=0;BPP=0;HRD=0
a=rtpmap:34 H263/90000
a=fmtp:34 F=0;I=0;J=0;T=0;K=0;N=0;BPP=0;HRD=0
a=sendrecv
<------------->
--- (12 headers 22 lines) ---
set_destination: Parsing for address/port to send to
set_destination: set destination to 192.168.9.201:5060
Transmitting (NAT) to 192.168.9.201:5060:
ACK sip:9001@192.168.9.201:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK6897e0d0;rport
Max-Forwards: 70
From: "Nedson Phiri" ;tag=as65b438b4
To: ;tag=1848821140
Contact:
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 102 ACK
User-Agent: FPBX-2.11.0(11.17.1)
Content-Length: 0

Reliably Transmitting (NAT) to 192.168.9.201:5060:
OPTIONS sip:9001@192.168.9.201:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK1eaf7854;rport
Max-Forwards: 70
From: "Unknown" ;tag=as5469fc93
To:
Contact:
Call-ID: 30a36e376149041b0b5c45ae49832b2d@192.168.0.248:5060
CSeq: 102 OPTIONS
User-Agent: FPBX-2.11.0(11.17.1)
Date: Thu, 03 Sep 2015 12:55:54 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0

<--- SIP read from UDP:192.168.9.201:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.248:5060;branch=z9hG4bK1eaf7854;rport=5060
From: "Unknown" ;tag=as5469fc93
To: ;tag=1961335533
Call-ID: 30a36e376149041b0b5c45ae49832b2d@192.168.0.248:5060
CSeq: 102 OPTIONS
Supported: replaces, path, timer
User-Agent: Grandstream GXP1400 1.0.7.11
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE
Content-Length: 0

<------------->

<--- SIP read from UDP:192.168.9.201:5060 --->
BYE sip:1011@192.168.0.248:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.9.201:5060;branch=z9hG4bK2055290134;rport
From: ;tag=1848821140
To: "Nedson Phiri" ;tag=as65b438b4
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 103 BYE
Contact:
Max-Forwards: 70
Supported: replaces, path, timer
User-Agent: Grandstream GXP1400 1.0.7.11
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE
Content-Length: 0

<------------->
--- (12 headers 0 lines) ---
Sending to 192.168.9.201:5060 (NAT)
Scheduling destruction of SIP dialog '28835d107021001f6abefe5e624235e4@192.168.0.248:5060' in 19136 ms (Method: BYE)

<--- Transmitting (NAT) to 192.168.9.201:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.9.201:5060;branch=z9hG4bK2055290134;received=192.168.9.201;rport=5060
From: ;tag=1848821140
To: "Nedson Phiri" ;tag=as65b438b4
Call-ID: 28835d107021001f6abefe5e624235e4@192.168.0.248:5060
CSeq: 103 BYE
Server: FPBX-2.11.0(11.17.1)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0

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Participants: 1

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