The fact is, these dropped calls do not get logged as unconnected calls, resulting in lesser total calls than the orignating party's records. The disconnect cause of such dropped calls are also unknown.
It seems that the Q.931 setup is failing, right?
TIA, KR
From: Nir Simionovich <nirs@m-wise.com> Reply-To: openh323gk-users@lists.sourceforge.net To: openh323gk-users@lists.sourceforge.net Subject: Re: Dropped calls, fast busy tone Date: Tue, 06 Jan 2004 15:12:25 +0200
Hmmmm....
Lets see, according to what you say you have 1600 good calls a day. Which means 1600/2000 = 80% ASR. Sounds perfect to me :-)
You have to remember that VoIP isn't a bullet proof technology, and calls may drop without any specific reason. If you would check the Q.931 disconnect cause it would give you an indication why the call was dropped. In any case, I would kill for a VoIP route that would give me 80% ASR :-)
Nir S
K R wrote:Hi,
Using the latest copy of 2.0.7 from CVS, calls get dropped intermittently, approximately 300-400 of 2000 calls a day. Below are output from GK debugging and tcpdump.
GK debug:
2004/01/03 15:14:25.194 5 ProxyThread.cxx(354) Q931s Reading from originator:35130
2004/01/03 15:14:25.194 3 ProxyChannel.cxx(417) Q931s Received: Facility CRV=25118 from originator:35130
2004/01/03 15:14:25.196 4 ProxyChannel.cxx(373) Q931 Received: {
q931pdu = {
protocolDiscriminator = 8
callReference = 25118
from = originator
messageType = Facility
IE: Facility = {
}
IE: Display = {
63 69 73 63 6f 20 53 79 73 74 65 6d 73 2c 20 49 cisco Systems, I
6e 63 2e nc.
}
IE: User-User = {
26 90 06 00 08 91 4a 00 04 c7 c8 a0 ef 3f 4e 11 &.....J......?N.
d8 8e 47 86 63 fb 86 b3 d0 86 01 00 1f 01 80 11 ..G.c...........
00 c7 c9 d9 3f 3f 4e 11 d8 8e 49 86 63 fb 86 b3 ....??N...I.c...
d0 01 80 01 80 10 c0 01 80 10 01 0e 6d 81 0b 68 ............m..h
20 0f 9f 58 ea 3a b2 95 00 00 ..X.:....
}
}
h225pdu = {
h323_uu_pdu = {
h323_message_body = facility {
protocolIdentifier = 0.0.8.2250.0.4
conferenceID = 16 octets {
c7 c8 a0 ef 3f 4e 11 d8 8e 47 86 63 fb 86 b3 d0 ....?N...G.c....
}
reason = transportedInformation <<null>>
callIdentifier = {
guid = 16 octets {
c7 c9 d9 3f 3f 4e 11 d8 8e 49 86 63 fb 86 b3 d0 ...??N...I.c....
}
}
multipleCalls = TRUE
maintainConnection = TRUE
}
h245Tunneling = TRUE
h245Control = 1 entries {
[0]= 14 octets {
6d 81 0b 68 20 0f 9f 58 ea 3a b2 95 00 00 m..h ..X.:....
}
}
}
}
}
TCP dump: originator.35130 > gatekeeper.1720: . ack 1324512693 win 3857 [tos 0x68] gatekeeper.1720 > originator.35130: . ack 1 win 7504 (DF)
TIA, KR
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