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Noun Explanation

1．UC：Unified Communication, This refers to Dinstar's UC series products. 

2. FXO ： Foreign Exchange Office，here refers to the FXO port.

3. CID：Caller Identity.

I. The feedback phenomenon

The FXO port of the UC is connected to an analog phone line, and when you call into the UC from the phone line, you see that the CID is 8000 or 8001, not the real source number.

II. Statement of reasons

When calling in through the FXO port, if there is a CID detected, you will see the source number as CID in the CDR and internal ringing extensions; if there is no CID detected, the extension of the FXO is displayed. as shown below, the extension of the FXO is 8001.

So what are the reasons for not detecting a CID? The reasons are as follows:

(1) The PSTN line did not send the CID over;

(2) The parameter setting for detecting CID is not realistic, such as detecting before ringing, or detecting after ringing?

(3) The noise interference in the line is too large to detect the CID.

III. Solutions

3.1.1 The direct way is to get the inbound diagnostics, which contains the PCM data.

Check FXS/FXO in "Call Control/Diagnostics", click "Start", and then initiate the inbound call.

When the call is finished, click "Stop&download" to download the Diagnostics file.

3.1.2 Unzip the Diagnostics file and open the xxx_RX.PCM file in it, it will be possible to see if there is a CID, the location of the CID (before or after ringing), and if there is a noise signal.

3.1.3 As shown above, you can see that there are CIDs (DTMF type CIDs) and the CIDs are after the first ringing. The noise on the line is very small and can be ignored. Therefore, you only need to set Detect Caller ID to "Detect after Ring".

3.2 If the CID is not visible in the PCM, there may be no CID, or it may not be a DTMF type CID (it may be a pulse signal). Then try connecting the phone line to an analog phone, call into the analog phone and verify that there is a CID?

3.3 If there is a lot of noise in the signal in the PCM, it is possible that the noise is overriding the CID signal and will cause the CID not to be detected. as shown in the figure below, the noise in the signal is obvious.

3.3.2 This situation requires an impedance matching test on the FXO port. Let the impedance of the FXO balance the impedance of the line.

3.4 If the gain is seen to be low or high in the PCM, the gain control can be used to keep the gain in the proper range.

3.5 If the above does not solve the problem, please get Diagnostics to a Dinstar technician for assistance.

I. Demand scenarios

A customer uses Dinstar's UC350 as the SIPserver for the cruise ship's communication system, and requires that the internal extensions can make free calls to each other, and also needs to be able to call the outside phone number. However, satellite communication is used for external communication, and the cost of satellite communication is relatively high. It is required to add a password verification function for external calls.

II. Configuration

2.1 On the Profile / PIN List page, add PIN list.

Remarks:

(1) Default version supports 32 Index records, later version supports 128 Index records;

(2) You can add 32 PIN lists to each Index, and you can add multiple passwords.

2.2 Call Control / Route page, add or edit the outgoing route, and set the Password Type.

Remarks: 

(1) The password type can only be selected if the Destination is a Trunk outside the UC, if it is routed to the local UC, there is no password type option.

(2) Password type is off by default, you can choose Single Password or PIN List.

(3) If the password type is Single Password, you can set the password directly.

(4) If Password type is PIN List, select PIN List.

III. Functional validation

3.1 local extension Calling an outside number, the outside trunk is automatically selected according to the routing rules, but the call will not go out immediately, and you will hear the prompt "Enter your password, follow by pound". 

3.1.1 The call will be sent out from the outside trunk only after the correct password is entered.

3.1.2 If you don't enter your password, you will hear the prompt "Enter your password, follow by pound" again after 5 seconds, and if you don't enter your password within 5 seconds after three prompts, you will hear the message "The password you The password you entered is not a valid on the system", then hang up the call.

3.1.3 If you enter wrong password, the system will prompt "The password you entered is not a valid on the system", and then prompt "Enter your password, follow by pound" again. follow by pound", after prompting three times and not entering the correct password within 5s, the system will prompt "The password you entered is not a valid on the system", and then hang up the call.

Note: pound is the symbol #.

1. Purpose of the requirements

Upload UC recording files to computer storage automatically.

2. Implementation

We will use UC's Event Report function to upload the recording files to the pc.

3. Steps

3.1 Open the http server on your computer and add a folder

The added folder must be a real folder in the PC.

Tips: HFS(http server) download link : https://sourceforge.net/projects/hfs/postdownload

3.2 Enable "anyone upload"  

Select Folder, right-click and select Properties, Permissions - Upload page, enable Anyone , then click Apply&OK , will allow anyone upload.

3.3 Enable "recordings"on uc

In the UC's System/Event Reporting - Recording, enable status and set the server address to the path of the http server folder.

Note: The basic setup is done.

4. Test

4.1 Initiate a call on the UC to generate a recording file

Note: Refer to the relevant documentation for the generation of the recording file.

4.2 Check the upload status on http server  

Check the log at httpserver, whether the recording file is uploaded. And check whether the recording file is uploaded successfully under the folder.

As the picture above: httpserver log see a post request, after that uploaded the recording file; under the folder, see the recording file has been saved . Confirm the function is normal.

Note: The format of the recording file is Date (Year, Month, Day, Hour, Minute, Second) + Source + Source Number + Destination + Destination Number, and the file is wav, 16bit, 8000hz,128kbps.