Our main national telephone operator offers customers new services, such as Fiber, discarding the “old” ISDN studs. The important feature of this type of service lies in the fact that the two ISDN telephone channels are emulated by a router, but instead of being digital they are 2 single analog lines where a traditional analog […]
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Description of the problem: no more REGISTER packets have arrived from the terminal and \ or from the gateway and the registration session has expired. Each physical device that uses the SIP protocol (IP phones and telephone gateways) periodically sends (every 60-120 seconds) registration packets (REGISTER) to the server, indicating the registration period in the […]
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It is quite frequent the situation in which a switchboard user needs to manage two terminals: a fixed desk phone and a cordless telephone to have freedom of movement (e.g. while I’m on the phone I have to get up to open the office filing cabinet, I have to go to the archive in the […]
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The Diagnostics section, which can be reached from the Toolbox -> Diagnostics menu, allows you to access the switchboard event log and to carry out a specific diagnosis of the problems. This area can also be accessed from the Call Report.By clicking on the you can download the current trace, while clicking on the icon […]
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The problem is related to the way in which the PBX considers the IVR entity: in fact in the most recent versions of the PBX the responder is an EXTERNAL entity and in order for it to make calls to external numbers, there must be a specific routing rule that indicates that for call that […]
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THE FIRST THING TO CHECK IN THESE CASES IS THE ACCURACY OF THE USER’S CREDENTIALS THROUGH HIS PROFILE. FIRST MAKE SURE THAT THE DIAGNOSTICS OF THE PBX IS ENABLED AND ENABLE THE CONNECTION METHOD OF THE SIP INTERFACE. The parameters to be checked are the following Username (username) SIP terminal password Extension Number If necessary, […]
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The UI is a web application that uses the HTML 5 standard. The application installed on PCs is a container (in jargon a wrapper) that runs an instance of the Internet Explorer browser (always present in Windows installations). If there were any problems such as it does not authenticate to the PBX, it does not […]
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The pbx receives a request in clear text N times (INVITE \ REGISTER) despite having sent the challenge to authenticate with the 401 N times to the sender As seen previously in case 3), when there are terminals and / or telephone gateways that register on UCloud, the system operates as a SIP server. The […]
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The Toolbox – PBX signals section is very useful for diagnosing problems, most of the time, related to your own connectivity or to some badly configured terminal or UI, other times related to VoIP operators. This section shows the anomalous events relating to the various entities (users, gateways, UI) of the switchboard. Each new event […]
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The remote device behind the NAT (terminal / gateway) within the same session has changed the source IP / Port. If the duration of the UDP NAT sessions is configured correctly, i.e. greater than the registration period, each device will send a request before the NAT session expires which therefore will never change. Each device […]
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