[cisco-voip] FXO disconnect problem.

[wael ahmed el mezain]

Hello Hady,
 
With Telecom Egypt, "connection plar opx" solve the problem at most cases.
But if not u have to check the below, it is working at most cases
 
Get the type of PBX to which the FXO lines are connected . Let the customer ask etisalat to provide the PBX type to which the FXO lines connected , and add the following configuration depending on the PBX type 
 
 
voice class dualtone-detect-params 1
freq-max-deviation 25
freq-min-power 13
freq-max-power 0
freq-power-twist 4
cadence-variation 4
!
voice class custom-cptone UAE-CUSTOM-SIEMENS
dualtone disconnect
frequency 425
cadence 425 325 250 500

voice class custom-cptone UAE-CUSTOM-ERICSSON
dualtone disconnect
frequency 425
cadence 325 325

voice class custom-cptone UAE-CUSTOM-FETEX
dualtone disconnect
frequency 425
cadence 375 375

voice class custom-cptone UAE-CUSTOM-ALCATEL
dualtone disconnect
frequency 425
cadence 375 375


 
 
voice-port 0/2/0
supervisory disconnect dualtone mid-call
supervisory custom-cptone UAE-CUSTOM-XXXXX (use one of the 4 above cptones, SIEMENS, ERICSSON, FETEX, ALCATEL)
supervisory dualtone-detect-params 1
input gain 14
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 9000
caller-id enable
! 9000 is the AA extension
 
Notes: 
if the "connection plar opx" or the below configs will not solve the problem then check the RJ11 cable with the client may be it has the issue.
 
 


From: ahmed_elnagar at hotmail.comTo: eng_hady1 at yahoo.comDate: Mon, 16 Jun 2008 21:11:20 +0300CC: cisco-voip at puck.nether.netSubject: Re: [cisco-voip] FXO disconnect problem.



Hello ya hady; Two ways to solve this problem: 1- Use H323 instead of MGCP on the gateway with the "connection plar opx " command and in most of the cases it solves the probelm.2- If you want to use mgcp "or h323 didnot solve it" then you must know exactly the disconnect frequency that TelecomEgypt send when a call disconnects "as this is the root cause of the problem that the router doesnot understand this signal" Unfortunaltly that TE doesnot has a standard for this tone "I asked them b4 and they told me they didnot care for this" then it depends on the CO. that you are connected to, anyway the values are so close and they are as follows: frequency 450cadence 250 250 configure them in a voice class and apply the voice class as a custome supervisory tone to the voice ports If you need more help I will be more than happy to assisst, I faced this problem alot here in Egypt with different CO.s and I think I can help u ISA. Thanks  


Date: Mon, 16 Jun 2008 08:01:04 -0700From: eng_hady1 at yahoo.comTo: cisco-voip at puck.nether.netSubject: [cisco-voip] FXO disconnect problem.
Dear all ,
 
i want to know how to solve FXO disconnect problem ,  i use IOS Version 12.4(3g) 
please i nees a help from you or from any one in Egypt face this problem.
 
thanks,
 
Hady Salah 

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