[Freeswitch-users] short ringback tone when answer

Michael Jerris mike at jerris.com
Tue May 11 18:19:03 PDT 2010


We can fix this easily enough by never sending out that IE in this dialect.  

Mike

On May 11, 2010, at 9:01 PM, Jan Berger wrote:

> Well, the doc’s i sent you don’t even contain the Signal IE …
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Ron McLeod
> Sent: 12. mai 2010 02:48
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> I have the docs – they are pretty much the same as the ITU docs except for some additions for propagating traveling class marks and other proprietary stuff.  I don’t think this issue is variant-specific anyway.
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Jan Berger
> Sent: Tuesday, May 11, 2010 5:29 PM
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> 4ESS means the make is AT&T – it’s an old legacy thing – ISDN PRI only. You can get the standard doc from AT&T for free – at least it used to be on their site.
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Ron McLeod
> Sent: 12. mai 2010 01:59
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> Jan –
>  
> This is not my issue – I am helping someone in HKG that posted earlier today, but I can answer some the questions on his behalf.
>  
> I’m not sure of the make/model of the PSTN switch (he may not know either), but the interface is T1 and the variant is 4ESS.
>  
> FreeSWITCH is the terminating side of the call in his application, and is configured as the Q.931 user.  It does send CALL PROCEEDING message in response to the SETUP message, but it is delayed because he had a 6 second sleep as the first action in dial plan and PSTN side timed-out waiting (T303 = 4secs).  The stack should probably send a SETUP ACKNOWLEDGE after it finds a match in the dial plan, before any actions are executed.
>  
> The PSTN is the one sending the Signal IE in the SETUP message, not FreeSWITCH.
>  
> The stack is FreeSWITCH ISDN (not Sangoma, not libpri).
>  
> What I would like to understand is -- what does including a Signal IE in the SETUP message actually mean.  Does it inform the terminating end that the originating end will play the specified call progression to the calling party automatically (this appears to be what is happening)?  Is it a request to the terminating switch of what type of in-band call information it should send back to the calling party?
>  
> Ron
>  
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Jan Berger
> Sent: Tuesday, May 11, 2010 4:18 PM
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> Ron,
>  
> What equipment and what Q.931 variant are you connected to? If possible get a PICS out of them.
>  
> L3 should respond with SETUPACK on a SETUP to avoid re-send. You can respond with CallProceeding or Alerting, but SetupAck is designed to be sent back from L3 to buy L4 time.
>  
> Also – you need to disable sending of Signal. It is not a mandatory part of the stack, but I would like to know what equipment/ISDN variant we are daling with here.
>  
> Also – is this OpenZAP, Libpri or a sangoma stack you use on FreeSWITCH ?
>  
> Jan
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Ron McLeod
> Sent: 11. mai 2010 23:30
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> FreeSWITCH ISDN.
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Michael Jerris
> Sent: Tuesday, May 11, 2010 11:29 AM
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> which pri stack is this?
>  
> Mike
>  
> On May 11, 2010, at 1:35 PM, Ron McLeod wrote:
>  
> 
> Tony sent me a Q.931 trace off-list and I thought I would post it here any case anyone has seen this before.
>  
> The telco side is including a Signal IE in the SETUP message.  I’m not sure what this means – that the telco will play alerting pattern 0 back to the CPE unless otherwise instructed?
>  
> Other things in the trace:
>   * SETUP is sent again because the dial plan was executing sleep() before anything triggered a CALL PROCEEDING.
>   * The switch PRI stack is reflecting back the Signal IE in the ALERTING, CONNECT, and RELEASE messages and the telco complains that the IE is not supported.
>  
>  
>  
> RX [08 02 32 11 05 a1 04 03 80 90 a2 18 03 a1 83 97 34 01 40 6c 0a 00 81 XX XX XX XX 30 36 39 34 70 05 80 36 37 30 30]
> Message Type: [05] SETUP
> IE: [a1] Sending Complete
> IE: [04] Bearer Capability
> IE: [18] Channel identification
> IE: [34] Signal - Alerting on – pattern 0
> IE: [6c] Calling party number - TON unknown/NPI unknown/Presentation allowed/User-provided, not screened/XXXX0694
> IE: [70] Called party number - TON unknown/NPI unknown/6700
>  
>  
> RX [08 02 32 11 05 a1 04 03 80 90 a2 18 03 a1 83 97 34 01 40 6c 0a 00 81 XX XX XX XX 30 36 39 34 70 05 80 36 37 30 30]
> Message Type: [05] SETUP
> IE: [a1] Sending Complete
> IE: [04] Bearer Capability
> IE: [18] Channel identification
> IE: [34] Signal - Alerting on – pattern 0
> IE: [6c] Calling party number - TON unknown/NPI unknown/Presentation allowed/User-provided, not screened/XXXX0694
> IE: [70] Called party number - TON unknown/NPI unknown/6700
>  
>  
> TX [08 02 b2 11 02 04 03 80 90 a2 18 03 a1 83 97]
> Message Type: [02] CALL PROCEEDING
> IE: [04] Bearer Capability
> IE: [18] Channel identification
>  
>  
> TX [08 02 b2 11 01 04 03 80 90 a2 18 03 a1 83 97 34 01 40]
> Message Type: [01] ALERTING
> IE: [04] Bearer Capability
> IE: [18] Channel identification
> IE: [34] Signal - Alerting on – pattern 0
>  
>  
> TX [08 02 b2 11 07 18 03 a1 83 97 34 01 40]
> Message Type: [07] CONNECT
> IE: [18] Channel identification
> IE: [34] Signal - Alerting on – pattern 0
>  
>  
> RX [08 02 32 11 7d 08 07 82 e3 34 00 00 00 00 14 01 07]
> Message Type: [7d] STATUS
> IE: [08] Cause -- IE not implemented/Signal
> IE: [14] Call State -- call received
>  
>  
> RX [08 02 32 11 7d 08 07 82 e3 34 00 00 00 00 14 01 08]
> Message Type: [7d] STATUS
> IE: [08] Cause -- IE not implemented/Signal
> IE: [14] Call State -- connect request
>  
>  
> RX [08 02 32 11 0f]
> Message Type: [0f] CONNECT ACKNOWLEDGE
>  
>  
> RX [08 02 32 11 45 08 02 82 90]
> Message Type: [45] DISCONNECT
> IE: [08] Cause -- Normal call clearing
>  
>  
> TX [08 02 b2 11 4d 34 01 40]
> Message Type: [4d] RELEASE
> IE: [34] Signal - Alerting on – pattern 0
>  
>  
> RX [08 02 32 11 5a 08 07 82 e3 34 00 00 00 00]
> Message Type: [5a] RELEASE COMPLETE
> IE: [08] Cause -- IE not implemented/Signal
>  
>  
>  
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Anthony Minessale
> Sent: Monday, May 10, 2010 9:15 AM
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] short ringback tone when answer
>  
> if ringback is not set, it would never play a tone and even if it was, it would not be played if you explicitly called answer.
> Try reversing the answer and the sleep in your dialplan.
>  
>  
>  
> 
> On Sun, May 9, 2010 at 9:37 PM, Tony Tin <tony.tin at noahmedia.com.hk> wrote:
> Hi Peter,
> 
> Thanks for your reply.
> 
> The other end is the Telco, I've confirmed with them that they don't play the tone for us, also I got the Asterisk install in the same box, it doesn't play the tone. The tone is played exactly when the answer function is executed, if I put sleep 10 seconds before the answer, the tone will delay 10 seconds too, any idea?
> 
> Regards,
> Tony
>  
> 
> On Mon, May 10, 2010 at 2:33 AM, Peter Olsson <peter.olsson at visionutveckling.se> wrote:
> The equipment connected in the other en of the T1 is probably playing these tones for you, 500ms is probably the time it takes for the called to be connected successfully.
> 
> /Peter
> ________________________________________
> Från: freeswitch-users-bounces at lists.freeswitch.org [freeswitch-users-bounces at lists.freeswitch.org] f&#246;r Tony Tin [tony.tin at noahmedia.com.hk]
> Skickat: den 9 maj 2010 15:16
> Till: freeswitch-users at lists.freeswitch.org
> Ämne: [Freeswitch-users] short ringback tone when answer
> 
> Hi All,
> 
> I've just setup a new IVRS with FreeSwitch and a Digium TE220 card (which is connected to a 4ess T1). Every thing works fine so far except one little problem that annoys me. Every time I dial in the ivrs, there is a very short (0.5 second) ringback tone exactly while the "<action application="answer"/>" line is executed in the dial plan. I want to disable this ringback tone because the ivrs will answer the call immediately, the ringback tone is really unnecessary in this case, but I fail to do that. I try to set the variable "ringback" to change the ringback tone, it's also not working. Could anyone please help.
> 
> I'm using the native pri stack.
> The default.xml containts only below lines, and attached is the log file.
> 
>       <extension name="testing">
>          <condition field="destination_number" expression="^(6.*)$">
>                <action application="sleep" data="3000"/>
>                <action application="answer"/>
>                <action application="sleep" data="3000"/>
>          </condition>
>       </extension>
> 
> Regards,
> Tony
> 
> !DSPAM:4be6f37432931620317181!
> 
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> 
> 
> -- 
> Anthony Minessale II
> 
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