[asterisk-users] duration limits in Dial() not being enforced at correct time

Kingsley Tart kingsley at skymarket.co.uk
Fri Nov 4 08:02:51 CDT 2011


Hi,

DAHDI and LIBPRI are the standard versions from the Asterisk web site.
The Asterisk server has a Sangoma E1 card in it and the line is regular
ISDN30.

Cheers,
Kingsley.

On Thu, 2011-11-03 at 08:14 -0500, Danny Nicholas wrote:
> Please elaborate on your "flavor" of DAHDI and LIBPRI and what type of DAHDI
> service you are using (PSTN, T1, etc).  Speaking from a POTS line point of
> view, there can easily be a 7-10 second delay in the processing of DAHDI
> information (which would make your 1347 second call within tolerance).
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Kingsley Tart
> Sent: Thursday, November 03, 2011 5:11 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] duration limits in Dial() not being enforced at
> correct time
> 
> Hi,
> 
> We're trying to time-limit some calls by specifying L(x:y:z) as an option to
> the Dial command.
> 
> If we set the limit to a fairly short duration (eg 120 seconds) then
> Asterisk seems to issue the hangup at about the right time.
> 
> However, for longish calls we're seeing quite a bit of overspill. For
> example we tried to limit one to 1338 seconds but Asterisk didn't hang up
> until 1384 seconds after the call was answered.
> 
> Also, the error is not always consistent - a second test call also limited
> to 1338 seconds was hung up by Asterisk after 1347 seconds.
> 
> We saw this problem with Asterisk 1.6 but we've now tried on Asterisk
> 1.8.6.0 and are having the same problem.
> 
> Here's a log from the Asterisk 1.8.6.0 box for the test call that should
> have been limited to 1338 seconds but was actually ended after 1384 seconds.
> The server wasn't carrying any other calls at the time or doing anything
> else so the load would have been very low.
> 
> [Nov  2 16:47:37] VERBOSE[2029] pbx.c:     -- Executing
> [01476292501 at service_nts_v2:57] Dial("DAHDI/i2/7622323283-4",
> "DAHDI/g1/08451238347,,L(1338000:30000:5000)M(service-nts-v2-register-answer
> )") in new stack
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > Limit Data for this
> call:
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > timelimit      =
> 1338000 ms (1338.000 s)
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > play_warning   = 30000
> ms (30.000 s)
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > play_to_caller = yes
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > play_to_callee = no
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > warning_freq   = 5000
> ms (5.000 s)
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > start_sound    =
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > warning_sound  =
> /var/lib/asterisk/sounds/bespoke/beep_200ms
> [Nov  2 16:47:37] VERBOSE[2029] features.c:        > end_sound      =
> [Nov  2 16:47:37] VERBOSE[2029] sig_pri.c:     -- Requested transfer
> capability: 0x00 - SPEECH
> [Nov  2 16:47:37] VERBOSE[2029] app_dial.c:     -- Called
> DAHDI/g1/08451238347
> [Nov  2 16:47:37] VERBOSE[2029] app_dial.c:     -- DAHDI/i1/08451238347-3 is
> proceeding passing it to DAHDI/i2/7622323283-4
> [Nov  2 16:47:37] VERBOSE[2029] app_dial.c:     -- DAHDI/i1/08451238347-3 is
> ringing
> [Nov  2 16:47:38] VERBOSE[2029] app_dial.c:     -- DAHDI/i1/08451238347-3
> answered DAHDI/i2/7622323283-4
> [Nov  2 16:47:38] VERBOSE[2029] pbx.c:     -- Executing
> [s at macro-service-nts-v2-register-answer:1] NoOp("DAHDI/i1/08451238347-3",
> "ANSWER MACRO") in new stack
> [Nov  2 16:47:38] VERBOSE[2029] pbx.c:     -- Executing
> [s at macro-service-nts-v2-register-answer:2] AGI("DAHDI/i1/08451238347-3",
> "agi://127.0.0.1:4573/ServiceNTSV2,mode=answered,uniqueID=1320252457.17_1,un
> iqueIDB=1320252457.18,ddi=08451238347,Goto=agiOK1") in new stack
> [Nov  2 16:47:39] VERBOSE[2029] res_agi.c:     -- AGI Script Executing
> Application: (Goto) Options: (agiOK1)
> [Nov  2 16:47:39] VERBOSE[2029] pbx.c:     -- Goto
> (macro-service-nts-v2-register-answer,s,7)
> [Nov  2 16:47:39] VERBOSE[2029] res_agi.c:     --
> <DAHDI/i1/08451238347-3>AGI Script agi://127.0.0.1:4573/ServiceNTSV2
> completed, returning 0
> [Nov  2 16:47:39] VERBOSE[2029] pbx.c:     -- Executing
> [s at macro-service-nts-v2-register-answer:7] GotoIf("DAHDI/i1/08451238347-3",
> "1?agiOK2") in new stack
> [Nov  2 16:47:39] VERBOSE[2029] pbx.c:     -- Goto
> (macro-service-nts-v2-register-answer,s,13)
> [Nov  2 16:47:39] VERBOSE[2029] pbx.c:     -- Executing
> [s at macro-service-nts-v2-register-answer:13] NoOp("DAHDI/i1/08451238347-3",
> "register-answer macro finished") in new stack
> [Nov  2 16:47:39] VERBOSE[2029] chan_dahdi.c:     -- Native bridging
> DAHDI/i2/7622323283-4 and DAHDI/i1/08451238347-3
> [Nov  2 17:10:42] VERBOSE[2029] pbx.c:     -- Executing [h at service_nts_v2:1]
> NoOp("DAHDI/i2/7622323283-4", "number HANGING UP ...
> CHANNEL=DAHDI/i2/7622323283-4, channel1=1320252457.17_1, channel2=,
> HANGUPCAUSE=16, UNIQUEID=1320252457.17") in new stack
> 
> Is this a known problem and are there any workarounds?
> 
> --
> Cheers,
> Kingsley.
> 
> 
> --
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