Solved: How to send PIN when making a call using SendDigits?

aaronngan · ‎03-11-2014

I'm trying to pass a CiscoIPPhoneExecute XML object to my Cisco IP Phone, so far I have succeed to dial a local number. The problem comes when I dial an IDD number, and I cannot pass the PIN (DTMF) by using the SendDigits command. Following is part of my code:

This is working and the phone dials 12345678

<CiscoIPPhoneExecute> <ExecuteItem Priority="0" URL="Dial:12345678" /> </CiscoIPPhoneExecute>

This IDD call to Sydney does not work, the PIN cannot be passed through to the IP phone. The call is dead after a short wait for user to input PIN.

<CiscoIPPhoneExecute> <ExecuteItem Priority="0" URL="Dial:61404345678" /> <ExecuteItem Priority="0" URL="SendDigits:56789" /> </CiscoIPPhoneExecute>

Can anyone advice me on how to use the send digits command?

dstaudt · ‎03-12-2014

Note the two CiscoINPhoneExecute objects should be sent in separate HTTP POST requests (not the same request). Also best practice is to wait for the full response from the first request before sending the second - some phones may discard Execute requests which arrive simutlaneously.

View solution in original post

amoherek · ‎03-11-2014

Hi Aaron,

I've moved your post to the IP Phone Services sub-space.

Order of execution is not guaranteed, so ExecuteItems will likely not execute in the order in which they are listed in the CiscoIPPhoneExecute object. This may be the reason it is not working.

Try using separate CiscoIPPhoneExecute objects like this:

</CiscoIPPhoneExecute>

</CiscoIPPhoneExecute>

Thanks,

Adrienne

amoherek · ‎03-11-2014

Hi Aaron,

If you are still seeing issues, please provide logs so we can troubleshoot further.

Thanks,

Adrienne

aaronngan · ‎03-11-2014

Hi Adrienne,

Thanks for your reply. After I use separate CiscoIPPhoneExecute objects, I receive a 400 Bad Request error. Here is the way I use separate objects:

My XML Object:

</CiscoIPPhoneExecute>

</CiscoIPPhoneExecute>

Code in c#:

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(string.Format("http://{0}/CGI/Execute", mIP));

NetworkCredential mNetworkCredential = new NetworkCredential(mAuthenUsername, mAuthenPassword);

string myPostData = "XML=" + myXMLObject;

byte[] myByteArray = Encoding.UTF8.GetBytes(myPostData);

webRequest.Method = "POST";

webRequest.ContentType = "application/x-www-form-urlencoded";

webRequest.ContentLength = myByteArray.Length;

webRequest.Credentials = mNetworkCredential;

using (Stream myRequestStream = webRequest.GetRequestStream())

{

myRequestStream.Write(myByteArray, 0, myByteArray.Length);

}

Stream myResponseStream = ((HttpWebResponse)webRequest.GetResponse()).GetResponseStream();

XmlTextReader myXMLReader = new XmlTextReader(myResponseStream);

For your information, I am using firmware version 9.1, and model CP7911 / CP7942

May I have your further adivce, please?

dstaudt · ‎03-12-2014

Note the two CiscoINPhoneExecute objects should be sent in separate HTTP POST requests (not the same request). Also best practice is to wait for the full response from the first request before sending the second - some phones may discard Execute requests which arrive simutlaneously.

aaronngan · ‎03-12-2014

Hi dstaudt,

Thank you for your advice. I amended the code to pass the two CiscoIPPhoneExecute objects separately. The first object has an execute item to "Dial" a number, the second object has an execute item to pass the PIN number by "SendDigits". I post the second object after I receive an XMLResponseItem for first object, and the response contains a status 0 ("Success").

My First XML Object

</CiscoIPPhoneExecute>

My Second XML Object

</CiscoIPPhoneExecute>

I have successfully post the first XML object, however, for the second XML object I receive a HttpWebResponse with Status: 6, Data: No Active Call.

May I have your further adivce, please?

dstaudt · ‎03-13-2014

Are you sending the messages immediately, one after the other? You may need to delay the second message an arbitrary amount of time (e.g. a second or two) to allow time for the call to proceed.

Mark Stover · ‎03-18-2014

why not just dial with one or more pauses?

URL="Dial:6140434567,56789"

aaronngan · ‎03-19-2014

Hi mstover,

dstaudt's reply is correct for most situations. My case is a bit unusual because when user inputs the PIN, the IDD call has not been made. The IDD is made only when CUCM has checked the PIN is valid.

Using Dial with comma

As far as I observe, the CUCM does not ask for PIN before the call is completely dialed, therefore, using "Dial:6140434567,56789" would be equivalent to dial Dial:614043456756789, and the device will not recognize 56789 is the PIN.

Using SendDigits

The senddigits does not work on my case neither because the IDD call is not made before a correct PIN is received. As a result, I will receive "6: no active call" if I use senddigits.

My solution is just dial the number, and then let the user to key-in the PIN themselves.

Mark Stover · ‎03-19-2014

Sorry, I misunderstood that you were working with the FAC/CMC feature of CUCM. The commas will work if you are interacting with an application external to CUCM. As you said, it won't work with FAC/CMC.

dstaudt · ‎03-19-2014

Yep...I also did not realize 'PIN' was referring to FAC/CMC. In that case, your observations are correct, XSI will not be able to manage the FAC/CMC entry for the user.

I would note that the CTI interfaces (TAPI/JTAPI) do allow applications to programmatically make calls - including submitting FAC/CMC digits and other post-dial DTMF interactions - if you'd like to continue looking for a solution:

https://developer.cisco.com/site/collaboration/call-control/jtapi/overview/

https://developer.cisco.com/site/collaboration/call-control/tapi/overview/

Note, developing for TAPI/JTAPI is a somewhat more involved undertaking than using IP Phone Services, but the capabilities are correspondingly more powerful...

aaronngan · ‎03-19-2014

Thank you both. I'm picking up the terminologies and hopefully can describe my question more effectively. I also have a related issue at [CUCM] How to retrieve the IP Address of user's device?, I appreciate if you are advice me on that related issue as well.