I am using Putty to simulate my phone's modem connected via serial. When my phone receives a call it outputs 'RING' into putty but when the caller cancel the call Putty doesn't out put any response or result.
How would the modem know that the caller disconnect/cancelled the call, but not output it in putty?
Thanks
To detect missed calls you can try three things.
Check if there is a suitable AT+CIND indicator you can turn on. I do not think call will do since I assume it only goes to 1 when the call is answered. If your phone supports callsetup or something similar that should be what you need (you will have to implement logic to detect when a call does not go to state active).
For an example of enabling AT+CIND indicators, see chapter "8.57 Informative examples" in 27.007 for more explanation, and pay close attention to The subparameter order in the command is defined by the query command order, e.g.
if AT+CIND=? returns
+CIND: ("abc",(0-1)),("xyz",(0,1)),("call",(0,1))
then call is index 3, and for
+CIND: ("abc",(0-1)),("call",(0,1)),("xyz",(0,1))
call is index 2. Do not hard code any assumptions here, this should be parsed and checked run-time (one check at the beginning is enough).
Alternatively you can upon RING start polling call status with AT+CLCC until the call is no longer listed.
Or you could poll the MC phonebook storage and detect changes.
Most modems show the incoming phone number and a RING when a call is received and an END when the call is cancelled. To view the missed calls, you may use the following AT Commands.
AT+CPBS="MC"
AT+CPBR=1,99
First command tells the modem to look in the missed call phone book and the second command loads entries from 1 to 99. Note that this behavior is not standard. I was able to replicate this on a GSM module but not on my 3G modem. Try it on your modem and check if this works. All the best.
Related
I am quit new in asterisk.
My problem is: I have to implement call hold and pick up in asterisk.
Let's say we have an incoming call called incomingCallA.
As an operator I want to hold incomingCallA for a while to deal with other works, then come back soon, If i am not come back, others operator will pick up my held call.
I have done some researches that told me:
Call hold is sip client function, dont need to changes at asterisk server.
I can use call parking to dial to others operator if i am not come back.
Please help me to about the solution to deal with above problem.
Many thanks.
Simplest for begginer is create 100 conference rooms using Meetme after that just send to first availible room and record room number.
You can forward call using Transfer AMI function.
I'm working on a basic sketch for an Adafruit Huzzah which uses the Adafruit IO MQTT library. This is put together by copy/pasting from various sources and examples, and mostly works - but there's one thing I can't figure out.
Right now, I'm using a line of code which fires off a handler every time a new message is received via the feed I'm subscribed to:
group->onMessage("daniel", handleMessage);
This is fine, and does what I need it to do for values which are updated.
What I want to do, however, is grab the last known value on the feed during the setup() routine, rather than having to wait for a new value to come though.
In MQTT parlance, I believe this is known as retained messages, which I think Adafruit IO has on by default, but I don't know how to grab these values during the startup() process.
Can anyone help me out?
(If you're interested, here's my code so far: https://github.com/LimeBlast/family-box/blob/master/family-box.ino)
Short answer is you don't... do anything.
Retained messages are delivered just the same as normal messages (via the onMessage callback), they are just delivered as soon as you subscribe to the topic.
I also had this problem. Here is the full explination
The get() function wil ask the Adafruit servers to resend the last value of the feed to this client only. When the value is received, the handler will be executed.
exampleFeed->get();
Seeing as I've just found the answer to the question I was asking, I figured it only right I post it here.
The command I was looking for, after having setup the feed, was ->get(), as shown in this example.
I forward incoming calls to external numbers.
I do this with Follow me module for each number.
Sometimes I use one more external number in follow-me list, to call the second ona if the first one is busy. Bu it is calling the first one and ringing. First one is busy and it is still ringing. I does not call the second number.
What i am doing wrong?
Your provider or ATA not recognize busy signal. Unfortanly no way say what exactly happens, info provided not enought
I am developing an java-asterisk application that is calling subscribers to deliver messages. At some moments during the call, I need to monitor whether the subscriber is talking or is silent. I need to monitor that for a fairly long time (1-3 seconds) but don't want to interrupt the flow of the outgoing message.
The way I am doing it now is as below
streamFile(*file A*);
exec("WaitForSilence","300,1,1");
waitStatus=getVariable("WAITSTATUS");
streamFile(*file B*);
This works fine but it is only a 300ms detect and a 1s timeout, so from the subscriber point of view the silence between file A and file B is almost unnoticeable. But if I want to listen for longer (say 3 seconds for example) then the subscriber's experience will be ruined.
What I would need is a function similar to "WaitForSilence" but that:
runs in parallel to the script;
delivers its outcome in a variable channel with a name that I define (as there might be several calls to the function, and I need to get all the results)
I've been looking for more than aweek now and couldn't find a way to do that. Any ideas?
Code you provided will do wait, after that will do playback.
There are no way do that simple in one application.
Posible ways:
1) create c/c++ application(asterisk guru skill required) for that.
2) create enother channel, mix it with ChanSpy and in that channel do silence detect. Complexity - expert in asterisk.
Both are not so short(more then 2-3 screens of code), so can't be described in this site.
You can also try use Background application, but i am afraid it will not work too.
Im working on a program to send and recieve SMS using a GSM modem and my computer.
I have gotten sending and receiving to work - well sort of.
Once in a while my program is sent into a total chrash due to modem is mixing up information about Radio Signal Strength Indication and alike, while also serving my program with the hex code for the message.
My code can handle the hex code just fine. but I have seen the following line popup while im decoding a byte stream:
^RSSI: 2
So far I've seen it send out values between 1 and 10.
Is there an AT Command that can disable them? I have no need for them.
Or alternative: Is there a general syntax for them, so I can filter them out before decoding?
Im leaning towards a filter solution. But that would be more easy to implement if I knew whenever modem is sending out on the form: "^SOMETHING: xxx", then It would be nice to know if it is always followed up be a delimiter say for instance "\r".
You should try turning off periodic messages as using AT^CURC=0.
Information regarding the AT^CURC command:
AT^CURC? Current setting of periodic status messages
AT^CURC=? See what you possible values are
AT^CURC=0 turn off periodic status messages
The best way to tackle this scenario would be to replace that part of the response with an empty string because otherwise, it will be difficult to check even if the command sent to disable it is working or not.
This regex will match all those. You can replace them ideally by an empty string.
(\\n|\\r|\\r\\n)\\^.*(\\n|\\r|\\r\\n)