Date: Thu, 3 Sep 1998 17:21:22 +0200 (CEST) From: hm@kts.org (Hellmuth Michaelis) To: leo@wau.mis.ah.nl (Leo Weppelman) Cc: freebsd-isdn@FreeBSD.ORG Subject: Re: called-back, rejects and auto hangup Message-ID: <m0zEbCM-00000GC@bert.kts.org> In-Reply-To: <19980903162118.27170@wau.mis.ah.nl> from Leo Weppelman at "Sep 3, 98 04:21:18 pm"
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Leo Weppelman wrote: > > I think Gary said it already: the remote calls back almost immediately; long > > before the local call to the remote is disconnected - this can be seen > > from the traces you sent me in private mail. > > Can you tell me why you think this is the case? To quote from your trace: You call out to your company ... (Call Reference cr=0x08) -- TE->NT - unit:0 - frame:000005 - time:02.09 21:19:40.17 - length:42 --------- Dump:000 00 c5 00 00 .... Q921: SAP=0 (Call Control), C, TEI=98, I-Frame: N(S) 0 N(R) 0 P 0 Q931: pd=Q.931/I.451, cr=0x08 (from origination), message=SETUP: [sending complete] [bearer capability: cap=unrestricted digital information std=CCITT rate=64 kbit/s mode=circuit] [channel id: channel=B-1 (preferred)] [calling party number: 0LOCAL (type=unknown, plan=ISDN)] [called party number: 0REMOTE (type=unknown, plan=ISDN)] ... It rings in your company ... -- NT->TE - unit:0 - frame:000010 - time:02.09 21:19:44.46 - length:8 ---------- Dump:000 02 c5 02 02 .... Q921: SAP=0 (Call Control), C, TEI=98, I-Frame: N(S) 1 N(R) 1 P 0 Dump:004 08 01 88 01 .... Q931: pd=Q.931/I.451, cr=0x08 (from destination), message=ALERTING: ... Your company calls back (Call Reference cr=0x06) ... -- NT->TE - unit:0 - frame:000012 - time:02.09 21:19:46.48 - length:44 --------- Dump:000 02 ff 03 ... Q921: SAP=0 (Call Control), C, TEI=127, U-Frame: UI PF 0 Q931: pd=Q.931/I.451, cr=0x06 (from origination), message=SETUP: [sending complete] [bearer capability: cap=unrestricted digital information std=CCITT rate=64 kbit/s mode=circuit] [channel id: channel=B-2 (exclusive)] [calling party number: REMOTE (type=national, plan=ISDN, presentation allowed, screening user provided: verified & passed)] [called party number: LOCAL (type=national, plan=ISDN)] [low layer compatibility: LEN=0x02, DATA=0x88 0x90 ] ... You dont accept the call The exchange tries again (Call Reference cr=0x07) ... -- NT->TE - unit:0 - frame:000014 - time:02.09 21:19:54.45 - length:44 --------- Dump:000 02 ff 03 ... Q921: SAP=0 (Call Control), C, TEI=127, U-Frame: UI PF 0 Q931: pd=Q.931/I.451, cr=0x07 (from origination), message=SETUP: [sending complete] [bearer capability: cap=unrestricted digital information std=CCITT rate=64 kbit/s mode=circuit] [channel id: channel=B-2 (exclusive)] [calling party number: REMOTE (type=national, plan=ISDN, presentation allowed, screening user provided: verified & passed)] [called party number: LOCAL (type=national, plan=ISDN)] [low layer compatibility: LEN=0x02, DATA=0x88 0x90 ] ... and again and again and again. The call to your company went out 21:19:40.17, now it is 21:21:12.28 almost 1 1/2 minutes (!!!!!!) after the setup with cr=0x08 comes the disconnect for this call - that is ridiculous !!! -- NT->TE - unit:0 - frame:000053 - time:02.09 21:21:12.28 - length:12 --------- Dump:000 02 c5 04 02 .... Q921: SAP=0 (Call Control), C, TEI=98, I-Frame: N(S) 2 N(R) 1 P 0 Dump:004 08 01 88 45 08 02 82 92 ...E.... Q931: pd=Q.931/I.451, cr=0x08 (from destination), message=DISCONNECT: [cause: 18: No user responding (Q.850) (location=public network serving local user, std=CCITT)] This is strange. At least you see that your company is _immediately_ (!!!) calling you back which is the primary cause of your problem. The other problem is the remote end (or the exchange) which somehow delays the disconnect message for 1 and a half minutes. hellmuth -- Hellmuth Michaelis hm@kts.org Hamburg, Europe We all live in a yellow subroutine, yellow subroutine, yellow subroutine ... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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