RFC4040 experiments » History » Revision 2
Revision 1 (manawyrm, 03/13/2022 02:37 AM) → Revision 2/3 (manawyrm, 03/13/2022 03:34 AM)
h1. RFC4040 experiments
@Manawyrm is playing with getting a Yate PBX to signal SIP CLEARMODE ISDN traffic over to a DAHDI ISDN line...
{{graphviz_link()
graph G {
newrank=true;
subgraph cluster_2 {
label="@manawyrm / Main";
divo [shape=house,label="yate \n(with CLEARMODE patches)"];
ue2a [label="Windows XP with \nFritz!Card PCI\n"];
pbx2 [label="Auerswald COMmander\nBasic 2 PBX"];
ice2 [shape=box3d,label="icE1usb\nGPS-DO\nDAHDI kernel driver\n"];
ue2a -- pbx2 [label="ISDN\nBRI"];
pbx2 -- ice2 [label="ISDN\nPRI"];
}
subgraph cluster_1 {
label="@manawyrm / Secondary";
pbx1a [label="FritzBox 7270\n PBX"];
pbx1a -- ue1a [label="ISDN\nBRI"];
ue1a [label="Windows 2000 with \nFritz!Card PCMCIA\n"];
}
divo -- pbx1a [label="SIP with\nCLEARMODE/8000"];
ice2 -- divo [label="ISDN PRI\nover DAHDI"];
}
}}
!{width:50%}epzhvtrjqnu.png!
!{width:40%}pjcyegwsukt.jpg!
Data calls (file transfers, G4 Fax, etc.) work perfectly.
H.320 video telephony doesn't negotiate properly?
<pre><code class="shell">
------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.2.164:5060;rport=5060;branch=z9hG4bK4BC8EE0F2510B5C3;received=192.168.2.164
From: <sip:manawyrm@192.168.2.6>;tag=9F3EF198F09C9620
To: <sip:2141@192.168.2.6>;tag=239506925
Call-ID: 9C3E4DA178024859@192.168.2.164
CSeq: 128 INVITE
Server: YATE/6.4.1
Contact: <sip:2141@192.168.2.6:5060>
Allow: ACK, INVITE, BYE, CANCEL, REGISTER, REFER, OPTIONS, INFO
Content-Type: application/sdp
Content-Length: 190
v=0
o=yate 1647142315 1647142315 IN IP4 192.168.2.6
s=SIP Call
c=IN IP4 192.168.2.6
t=0 0
m=audio 28714 RTP/AVP 106 101
a=rtpmap:106 CLEARMODE/8000
a=rtpmap:101 telephone-event/8000
------
2022-03-13_04:31:55.599022 <sip:INFO> 'udp:0.0.0.0:5060' received 440 bytes SIP message from 192.168.2.164:5060 [0x5628da894fa0]
------
ACK sip:2141@192.168.2.6:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.2.164:5060;branch=z9hG4bKDA14F57E9A4181C0
From: <sip:manawyrm@192.168.2.6>;tag=9F3EF198F09C9620
To: <sip:2141@192.168.2.6>;tag=239506925
Call-ID: 9C3E4DA178024859@192.168.2.164
CSeq: 128 ACK
Contact: <sip:manawyrm@192.168.2.164;uniq=3978329675728992ECBC5E9B1C932>
Max-Forwards: 70
User-Agent: AVM FRITZ!Box Fon WLAN 7270 v3 74.06.06 (Sep 24 2015)
Content-Length: 0
------
2022-03-13_04:31:55.603203 <yrtp:ALL> RTP/AVP message received
2022-03-13_04:31:55.603238 <yrtp:ALL> Wrapper 0x7fcce00040b0 found by CallEndpoint 0x7fccd000e040
2022-03-13_04:31:55.603264 <yrtp:ALL> YRTPWrapper::startRTP("192.168.2.164",7078) [0x7fcce00040b0]
2022-03-13_04:31:55.603300 <yrtp:INFO> RTP starting format 'alaw' payload 106 [0x7fcce00040b0]
2022-03-13_04:31:55.603342 >>> DataTranslator::detachChain(0x7fcce000b6e0,0x7fccc8005870)
2022-03-13_04:31:55.603358 <<< DataTranslator::detachChain
2022-03-13_04:31:55.603390 <ALL> DataTranslator::attachChain [0x7fcce000b6e0] 'alaw' -> [0x7fccc8005870] 'alaw' succeeded
2022-03-13_04:31:55.603407 >>> DataTranslator::detachChain(0x7fccc8005c30,0x7fcce0001290)
2022-03-13_04:31:55.603428 <<< DataTranslator::detachChain
2022-03-13_04:31:55.603454 <ALL> DataTranslator::attachChain [0x7fccc8005c30] 'alaw' -> [0x7fcce0001290] 'alaw' succeeded
2022-03-13_04:31:56.367358 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:31:56.964530 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:31:57.688357 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:31:58.526718 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:31:59.125424 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:31:59.967665 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:00.566247 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:01.286157 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:02.127759 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:02.726366 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:03.326702 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:04.046557 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:04.766334 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:05.486990 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:06.207850 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:06.927868 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:07.766819 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:08.364029 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:09.204817 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:10.047558 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
2022-03-13_04:32:10.647924 <auerswald/B:ALL> ZapCircuit(2). Buffer overrun old=480 channel=2 (11: Resource temporarily unavailable) [0x5628da8a89a0]
</code></pre>
The origin of the "Buffer overruns" is currently unknown, it also occurs with regular alaw voice calls, so this is unrelated to these experiments.
Further investigation needed.
