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  • Juan Ortega, Thu 15 of May, 2008 [10:33 UTC]: Hi everybody, I'm Juan, an ITCom student, and I need to know what basic elements I need to create a VoIP network. Can anybody helpme, please?,Thank you very much
  • gineta, Wed 14 of May, 2008 [03:58 UTC]: any here not fine the configuration of firewall juniper -screem for VOIP asterisk????
  • Anoop Prabhakaran, Tue 13 of May, 2008 [12:16 UTC]: I am developing Asterisk IVR, Whenever i make a internation call to the IVR system, the DTMF is not getting detected properly, this happens only for the first time, second call onwards system works fine. why this is happening
  • joe, Mon 12 of May, 2008 [04:27 UTC]: Is there an opensource browser based softphone, or a system like Busta where everything is not manages through their website?
  • Nick Barnes, Fri 09 of May, 2008 [11:36 UTC]: Christopher - yesterday I tried an Asterisk install on a CentOS 5.1 box with stock GUI and it all worked fine. Sorry I can't help.
  • aero, Fri 09 of May, 2008 [08:20 UTC]: can someone help me out on this, i tried to play some sound files on my asterisk box and this is the error message i got. WARNING[4429]: format_wav.c:169 check_header: Unexpected freqency 22050 May 8 11:17:39 WARNING[4433]: codec_gsm.c:194 gsmtolin_fra
  • Christopher Faust, Thu 08 of May, 2008 [14:15 UTC]: I beleive that I may have to change something in the xserver configuration. Please advise
  • Christopher Faust, Thu 08 of May, 2008 [14:14 UTC]: Everything was perfect. In the bios I have increased the memory allocated Still receive input not supported on my display.
  • Christopher Faust, Thu 08 of May, 2008 [14:13 UTC]: This would not be my main box. I am doing some testing to see if I can install zaptel and asterisk 1.4 on a full centos 5.1 box with development software Its bizzare, because before I went through the asterisk and zaptel installation everything was perfe
  • Nick Barnes, Thu 08 of May, 2008 [13:44 UTC]: Christopher - I can't see any way in which an Asterisk installation would muck your GUI, but remember that it is advised not to use a GUI on an Asterisk box anyway.
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DNIS

DNIS, Dialed Number Identification Service


From Wikipedia, DNIS is defined as follows:

  • "Dialed Number Identification Service (DNIS) is a service sold by telecommunications companies to corporate clients that lets them determine which toll-free telephone number was dialed by a customer. This is useful in determining how to answer an inbound call. With IVR and ACD systems, DNIS is used for dispatching purposes by using it as routing information to determine which script or service should be played based on the number that was dialled to reach the IVR platform."

NOTE: DNIS is not an asterisk variable . DNID is the closest thing.


See also


Created by oej, Last modification by Paul Gillman on Tue 29 of May, 2007 [22:23 UTC]

Comments Filter

DNIS is handy

by dgorski on Friday 21 of October, 2005 [19:13:01 UTC]

When using non-PRI T1s for inbound calling, DNIS is generally the DTMF digits dialed ahead of the call to identify the dialed number. In Asterisk, one simply defines an extension in the inbound context to catch this DNIS info and route the call based on the "dialled digits". In many commercial PBXs, this data is not considered an extension, but is a routing number.

It would be handy if DNIS was always set to the very first dialed extension an inbound channel provided. Then one could check back on this in other parts of the dialplan...

The only way to do this now is to use a channel variable for every call:

[inbound]
exten => s,1,SetVar(DNIS=${EXTEN})
exten => s,2,Goto(dnis-routing,${EXTEN},1)

[dnis-routing]
exten => 1234,1,Goto(somewhere,501,1)

[somewhere-else]
exten => s,1,GotoIf( use DNIS for later decisions on call handling )


Edit

somebody put up this page because ...

by Anonymous on Thursday 02 of December, 2004 [22:02:22 UTC]
... while Asterisk is GREAT software, it's not the only thing discussed here ... there is also a wealth of other pages about telephony generally. (:mrgreen:)

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