Hi, one way to solve the problem with Mailbox or that Message that get's played 
when busy/not available (same happens with Orange in Austria and other 
providers) you can implement something similar to what Elastix/FreePBX has. 
"Confirm call" - this will let the caller think it's still ringing while you 
will have to confirm the call after picking it up by dialing 1#. 
I use this when traveling through more then one country. Since I don't want to 
always change the GSM Number that is dialed when not in the office I simply 
send the call to ALL GSM Numbers with this option activated. Whichever I answer 
and press 1# gets the call. 

Cris

On 2 Nov, 2010, at 04:30 , GBR Icasiano, Ryan A. wrote:

> Yup, that's exactly what is happening. If there is only a way to override the 
> response(busy tone) by a ringing tone from asterisk, then the caller will not 
> hang up since after the "busy" status interpreted by asterisk as NOANSWER, 
> there will be a fallback which it will either transfer to another extension 
> or go directly to the callee's voicemail.
> 
> regards,
> 
> RYAN ICASIANO
> ________________________________________
> From: [email protected] 
> [[email protected]] On Behalf Of Sebastian 
> [[email protected]]
> Sent: Sunday, October 31, 2010 9:24 AM
> To: [email protected]
> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
> 
> On 10/29/2010 04:40 AM, jon pounder wrote:
>> On 10/28/2010 11:18 PM, GBR Icasiano, Ryan A. wrote:
>> 
>> Here is what I do today and it works fine:
>> 
>> - asterisk/trixbox
>> - Dext/android phone
>> - Bell Canada cell provider
>> - call comes in, to an extension with voicemail
>> - rings a bunch of sip devices (real phones, and the android via
>> linphone if it happens to be near wifi and registered (set to only use
>> wifi not 3g to register)
>> - if not answered call is forwarded back out a pots line and dials the
>> cell number (cell is not subscribed to provider voicemail)
> 
> This is an advantage over my situation. Here (UK) - if you don't
> configure voicemail on your mobile - the mobile operator just plays a
> message along the lines "The phone number xxxx is not available right
> now. Please try again later" (or something similar). Which screws things
> up - as Asterisk can't tell that the mobile is not available. To
> Asterisk, that message is the same as somebody answering the line. Same
> in France and Spain - as far as I've seen.
> 
> Sebastian
> 
>> - still no answer that pots line is hung up and call drops back into the
>> original extension's vm. (I have not run into a problem with answer
>> detection, only that people don't stay on the line long enough for me to
>> answer on the second set of ringing, but if they are that impatient the
>> call was probably not important anyway)
>> 
>> outgoing calls if registered I have a choice once I dial of linphone or
>> dialer to make the call.
>> 
>> checking vm is just *98<ext>  from linphone as the dialing app, or dial
>> in and navigate to vm.
>> 
>> linphone is a little less polished gui but seems to work the best for me
>> to reliably register when it should.
>> (tried about 5 different sip clients)
>> 
>> 
>> 
>> 
>>> Hi,
>>> 
>>> Thanks for your very informative response. This is really helpful. I 
>>> wouldn't be pushing it though since it isn't possible as of now.
>>> 
>>> Kudos!
>>> 
>>> RYAN ICASIANO
>>> ________________________________________
>>> From: [email protected] 
>>> [[email protected]] On Behalf Of Sebastian 
>>> [[email protected]]
>>> Sent: Friday, October 29, 2010 5:50 AM
>>> To: [email protected]
>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>> 
>>> Hi,
>>> 
>>> On 10/28/2010 11:20 AM, GBR Icasiano, Ryan A. wrote:
>>> 
>>>> Hi,
>>>> 
>>>> I can actually place a successful call using that configuration. The telco 
>>>> i'm currently working requires the prefix.
>>>> 
>>>> What I'm trying to do is to capture the status of the mobile phone, if it 
>>>> is currently engaged in a call or not.
>>>> 
>>> Maybe others who know better will jump in - but I seriously doubt you
>>> will be able to do this. From my limited knowledge, I believe mobile
>>> phone networks use different signalling then regular terrestrial based
>>> providers. I don't really think that the engaged tone sent back by the
>>> mobile operator will be decoded correctly by Asterisk.
>>> 
>>> Not to mention that, I don't what happens where you are - but in UK for
>>> example - you don't even get an engaged tone from a mobile phone. You
>>> just get either sent to the user's voice mail, or you are played a
>>> message from the mobile phone operator which essentially tells you that
>>> the user is engaged or unavailable. Operators in many other European
>>> countries do the same. So from the point of what you are trying to
>>> achieve - this is useless in Asterisk.
>>> 
>>> I would have liked to do the same thing - as I have line divert in
>>> Asterisk to my mobile phone - and I would have liked for Asterisk to
>>> just skip along to my Asterisk voice mail when my mobile is either out
>>> of coverage, or when I'm in a conversation on it. But no such luck. I
>>> believe the mobile operators wouldn't like the idea anyway - as they get
>>> to charge you extra for playing all those messages or sending you to
>>> their voicemail.
>>> 
>>> I believe in parts of the North American continent things are similar,
>>> but even worse. As the caller gets charged as soon as the mobile phone
>>> starts ringing - apparently simply the act of accessing the mobile
>>> operator's network is chargeable - never mind if you get to speak to
>>> anybody or not.
>>> 
>>> Then again, maybe things are different where you are - and maybe there
>>> is a way to get Asterisk to recognise the busy tone from your mobile
>>> operator. Maybe somebody here will jump in with a suggestion. It seems
>>> that it has to do with "busy signalling" in Asterisk. A softphone I
>>> believe will accomplish this out of band - with some commands over SIP.
>>> While PSTN (normal phone lines) and mobiles I believe tend to signal
>>> this with inband tones (part of the sound coming down the line).
>>> 
>>> You might also want to check your regional settings in Asterisk.
>>> 
>>> 
>>> Sebastian
>>> 
>>> I achieved this successfully by emulating it via a softphone, when I
>>> call a softphone and it is currently engaged in a call, asterisk returns
>>> BUSY in DIALSTATUS and will automatically fallback to the next step in
>>> the dialplan.
>>> 
>>>> But this is not the case when applying it to the mobile phone. When the 
>>>> target phone is currently engaged in a call, and I called the mobile 
>>>> phone, I can hear a "busy tone"(which is alright, since the target phone 
>>>> is actually busy), but it will wait until it timed out as defined in the 
>>>> DIAL cmd, and the "var DIALSTATUS" returns NOANSWER, instead of BUSY, as 
>>>> if the mobile phone is available and it was not answered at all.
>>>> 
>>>> It may also have to do on how the tones are being handled, or it can also 
>>>> be that the mobile phone and the media gateway are the one talking to each 
>>>> other, and asterisk cannot get the status of the phone itself.
>>>> 
>>>> regards,
>>>> 
>>>> RYAN ICASIANO
>>>> ________________________________________
>>>> From: [email protected] 
>>>> [[email protected]] On Behalf Of Sebastian 
>>>> [[email protected]]
>>>> Sent: Thursday, October 28, 2010 5:27 PM
>>>> To: [email protected]
>>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>>> 
>>>> Hi,
>>>> 
>>>> On 10/28/2010 01:06 AM, GBR Icasiano, Ryan A. wrote:
>>>> 
>>>>> Hi,
>>>>> 
>>>>> Thanks for your reply. I'm calling a normal phone using the DIAL cmd. 
>>>>> Here is my sample dial command:
>>>>> 
>>>>> exten =>s,4,Dial(SIP/xxx${extensi...@media_gateway,10,t)
>>>>> 
>>>>> but when I use:
>>>>> 
>>>>> exten =>s,5,NoOp(SIP/xxx${extensi...@media_gateway has state 
>>>>> ${DIALSTATUS})
>>>>> 
>>>> I'm not quite sure what you are trying to do.
>>>> 
>>>> So you called the phone for 10 seconds, the phone didn't answer - and
>>>> the variable "DIALSTATUS" told you exactly that.
>>>> 
>>>> Is the problem the fact that the line is not ringing out? Is that what
>>>> is wrong?
>>>> 
>>>> And why do you have some "xxx" in front of ${extension}? You shouldn't
>>>> need them. Just pass ${extension} - which is the number you dialled on
>>>> the phone.
>>>> 
>>>> Sebastian
>>>> 
>>>> 
>>>> 
>>>>> I hear a busy tone, after the 10 sec. timeout it returns NOANSWER, as 
>>>>> defined in my DIAL func.
>>>>> 
>>>>> I also tried getting the DEVICE_STATE
>>>>> 
>>>>> exten =>s,3,NoOp(SIP/xxx${extensi...@media_gateway has state 
>>>>> ${DEVICE_STATE(SIP/xxx${extensi...@media_gateway)})
>>>>> 
>>>>> and same thing happens as stated on the scenario below.
>>>>> 
>>>>> Thanks again!
>>>>> 
>>>>> regards,
>>>>> 
>>>>> RYAN ICASIANO
>>>>> ________________________________________
>>>>> From: [email protected] 
>>>>> [[email protected]] On Behalf Of Sebastian 
>>>>> [[email protected]]
>>>>> Sent: Wednesday, October 27, 2010 5:00 PM
>>>>> To: [email protected]
>>>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> On 10/27/2010 05:55 AM, GBR Icasiano, Ryan A. wrote:
>>>>> 
>>>>>> anyone???
>>>>>> 
>>>>>> regards,
>>>>>> 
>>>>>> RYAN ICASIANO
>>>>>> 
>>>>>> Hi,
>>>>>> 
>>>>>> I changed my sip.conf and added call-limit. At first I thought it works 
>>>>>> ok, since i tried calling a cellphone that is currently busy(phone 
>>>>>> answers 1st softphone, then another softphone calls the same number, it 
>>>>>> now returns INUSE). But then, i tried calling a different number while 
>>>>>> the first phone is busy, but it returns INUSE. It seems that the status 
>>>>>> being returned was from the peer itself(both phones uses the same peer) 
>>>>>> and not from the device(mobile phone) which i believe is more logical.
>>>>>> 
>>>>>> I also tried using DIALSTATUS(which of course you need to DIAL first), 
>>>>>> but then I only hear a busy tone and the dialstatus will return a 
>>>>>> noanswer. Do I have to configure it first in order to capture the busy 
>>>>>> status of a device? Have you done something similar to this?
>>>>>> 
>>>>>> I'm using ver. 1.6. Thanks in advance.
>>>>>> 
>>>>> I'm not sure I understand your setup. Are you using SIP for trunking, or
>>>>> for extensions? Are you calling a normal mobile phone, or a SIP client
>>>>> on a mobile phone?
>>>>> 
>>>>> Sebastian
>>>>> 
>>>>> 
>>>>>> regards,
>>>>>> 
>>>>>> RYAN ICASIANO
>>>>>> ________________________________________
>>>>>> From: [email protected] 
>>>>>> [[email protected]] On Behalf Of GBR Icasiano, 
>>>>>> Ryan A. [[email protected]]
>>>>>> Sent: Tuesday, October 26, 2010 10:41 AM
>>>>>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>>>>>> Subject: [asterisk-users] Mobile Phones and Asterisk
>>>>>> 
>>>>>> Hi,
>>>>>> 
>>>>>> Is the dev_state can also be used  to track a mobile phone's status via 
>>>>>> SIP? I tried it on several phones(nokia, samsung) but it returns 
>>>>>> NOANSWER but i can hear a beep beep beep sound indicating that it is 
>>>>>> currently busy.
>>>>>> 
>>>>>> regards,
>>>>>> 
>>>>>> RYAN ICASIANO
>>>>>> 
>>>>>> __________________________
>>>>>> From: [email protected] 
>>>>>> [[email protected]] On Behalf Of Sebastian 
>>>>>> [[email protected]]
>>>>>> Sent: Tuesday, October 26, 2010 7:50 PM
>>>>>> To: [email protected]
>>>>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>>>>> 
>>>>>> On 10/26/2010 12:30 PM, ayodele abejide wrote:
>>>>>> 
>>>>>>> Hello Jonathan,
>>>>>>> 
>>>>>>> The solution would work only if the ISP has one public address, but in
>>>>>>> my solution they have a pool of public address, any other possible 
>>>>>>> solution?
>>>>>>> 
>>>>>> With dynamic dns, you either install a piece of software on your server
>>>>>> (dynamic dns client) or you use the facility provided by your router
>>>>>> (some firewall/router/access point combo's have them). This software
>>>>>> updates automatically the record with dyndns every time your IP address
>>>>>> changes.
>>>>>> 
>>>>>> Sebastian
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>>> ABEJIDE, Ayodele A. (CCNA)
>>>>>>> +2348039269311
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> ------------------------------------------------------------------------
>>>>>>> From: [email protected]
>>>>>>> To: [email protected]
>>>>>>> Date: Tue, 26 Oct 2010 11:01:09 +0000
>>>>>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>>>>>> 
>>>>>>> thanks i would check it up
>>>>>>> 
>>>>>>> ABEJIDE, Ayodele A. (CCNA)
>>>>>>> +2348039269311
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> ------------------------------------------------------------------------
>>>>>>> Date: Tue, 26 Oct 2010 12:52:30 +0200
>>>>>>> From: [email protected]
>>>>>>> To: [email protected]
>>>>>>> Subject: Re: [asterisk-users] Mobile Phones and Asterisk
>>>>>>> 
>>>>>>> Try http://www.dyndns.com/ that should solve your problem with dynamic 
>>>>>>> IPs.
>>>>>>> 
>>>>>>> Regards,
>>>>>>> Jonathan
>>>>>>> 
>>>>>>> On Tue, Oct 26, 2010 at 12:40 PM, ayodele abejide
>>>>>>> <[email protected]<mailto:[email protected]>>      
>>>>>>> wrote:
>>>>>>> 
>>>>>>>         Dear Asterisk-Users,
>>>>>>> 
>>>>>>>         I have this Asterisk Box I run in my house, I need to terminate 
>>>>>>> and
>>>>>>>         originate remote calls through the box via internet (SIP), the
>>>>>>>         problem is in Nigeria most ISPs would not provide you with 
>>>>>>> Public
>>>>>>>         Addresses, all they provide is dynamic Natted addresses which 
>>>>>>> change
>>>>>>>         each time one connects, I have thought of all possible 
>>>>>>> solutions and
>>>>>>>         cannot come up with one, can anyone please help.
>>>>>>> 
>>>>>>>         Thanks in anticipation
>>>>>>> 
>>>>>>>         ABEJIDE, Ayodele A. (CCNA)
>>>>>>>         +2348039269311
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>>         --
>>>>>>>         
>>>>>>> _____________________________________________________________________
>>>>>>>         -- Bandwidth and Colocation Provided by 
>>>>>>> http://www.api-digital.com --
>>>>>>>         New to Asterisk? Join us for a live introductory webinar every 
>>>>>>> Thurs:
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>>>>>>>         To UNSUBSCRIBE or update options visit:
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>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> --
>>>>>>> Personal webpage - www.jonbaraq.eu<http://www.jonbaraq.eu>
>>>>>>> 
>>>>>>> -- _____________________________________________________________________
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>>>>>>> New to Asterisk? Join us for a live introductory webinar every Thurs:
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>>>>>>> 
>>>>>> --
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>>>>>> New to Asterisk? Join us for a live introductory webinar every Thurs:
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>>>>>> 
>>>>> --
>>>>> _____________________________________________________________________
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>>>>> New to Asterisk? Join us for a live introductory webinar every Thurs:
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>>>>> 
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>>>>> 
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>> 
> 
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