Glossary#
- CTI#
Computer Telephony Integration, also known as Computer Telephony Integration or CTI, is a general term for any technology that enables the integration and coordination of interactions via telephone and computer. The term is primarily used to describe desktop-based interaction that provides greater efficiency to users.
XPhone Connect Server can be connected to many different PBXs via CTI interfaces (CSTA/TAPI). Depending on the telephone system, the following CTI features can be used with the connected telephones:
Dial, answer, hang up, reject
Consultation, call waiting, conference
Consultation then transfer
Connect, Forward
Call waiting/second call
Configure call forwarding
- CTI services#
These are the Windows services, components and processes that are responsible for the CTI features on the XPhone Server.
- DMZ#
A DMZ (Demilitarized Zone) is a network area that lies between the internal network and external networks, such as the Internet. It is used to provide certain services for external access while the internal network remains protected. By placing the Mobile, Analytics and Meeting web applications in the DMZ, external access to these applications can be enabled without jeopardizing the security of the internal network.
- Headset functions#
It enables direct control of headset functions such as mute or call acceptance, provided that C4B has approved the headset manufacturer. Other headsets can also be used, but without support for these functions. Please visit our homepage <https://www.xphone-connect.com/de/integrationen/hardware/>_ for detailed information about which functions are supported with which headsets and what requirements, such as manufacturer software or an SDK, are necessary.
- Internal gateway#
The Internal gateway is created automatically and can be found in the list of SIP gateways under:
System settings > Telephony & Meetings > Telephony > SIP
This gateway is required for the audio and screen sharing connection in meetings. No configuration is required. However, it must be green so that audio and screen sharing functions can be used.
Hint
Please do not make any changes to the settings without first consulting Support.
- ITSP#
An Internet Telephony Service Provider (ITSP) provides digital telecommunications services based on Voice over Internet (VoIP) protocols delivered over the Internet. ITSPs provide their services directly to end customers or as wholesale providers to other ITSPs.
- Jitter#
Data packets can choose different routes on their way to their destination. Because these routes are different and also vary from each other in other properties, the individual packets take more or less time to travel through the network. In the worst case, the packets even reach the recipient in the wrong order. This variance in runtime is called jitter. In order for the subsequent digital/analogue converter to work without problems, the packets must be available continuously and sorted.

- Jitter Buffer#
A jitter buffer is intended to compensate for the runtime differences (jitter). It is located on the receiver side, temporarily stores incoming packets and restores the correct sequence if necessary. After a certain period of time, it then forwards them isochronously. The resulting additional delay is accepted in order to enable smoother playback.
If the jitter of a packet is greater than the buffer size of the jitter buffer, this packet cannot be queued and is discarded. The effect that then occurs is similar to a packet loss.
- MWI#
The Message Waiting Indicator (MWI) is a feature in PBXs that alerts the user that new messages, such as voicemails, have arrived. This notification is usually provided by a light or icon on the display, or by an acoustic signal on the phone or terminal.
- One Number Service#
The One Number Service is a telephony concept in which a user can be reached via a single telephone number, regardless of which end device they are using. This means that calls can be answered on the office phone, softphone, cell phone or other devices.
- PBX#
A PBX (Private Branch Exchange) is a telephone system that is used within a company or organization to manage internal and external calls. It offers functions such as call forwarding, waiting loops, voicemail and call groups. Modern PBX systems are often software-based (IP-PBX) and use VoIP (Voice over IP) for communication via the Internet.
- Satellite Bridge#
An application that is pre-installed on the satellite and is required for communication with the XPhone Server. Using Satellite Bridge, the XPhone Server can execute some functions on the Linux operating system (e.g. configure firewall, configure XCC, apply updates)
- SBC#
- Session Border Controller#
A Session Border Controller (SBC) is a network component for connecting different computer networks. These computer networks often have different security requirements. For example, SBCs are mainly used in IP telephony networks (VoIP) to couple external (insecure) data networks with internal (secure) networks or to realise so-called sessions. An SBC takes over the control of the signalling and usually also the streaming of the media. An SBC controls the connection setup, connection execution and connection termination of telephone calls or other interactive media involved in a communication.
- TAPI Service Provider#
The XPhone TAPI Service Provider (TSP) is a software component that acts as an intermediary between the telephone system and software within the Microsoft Telephony Application Programming Interface (TAPI) architecture. The TSP enables applications to control telephony functions such as dialing, answering, holding, connecting and ending calls.
- TSP#
- Unified Messaging#
Designates the fax, voicemail and text message features in XPhone Connect.
- UM#
See Unified Messaging.
- UM Settings#
UM Settings is a web portal that allows users to configure their Unified Messaging (UM) services such as fax, voicemail and text messages (SMS). The portal enables users who do not use an XPhone client to customize the settings for these services.
- Web-Administration#
The Web Administration is the XPhone Connect administration interface. The link is usually as follows:
http(s)://[IP|HOST]]/xphoneconnect/admin
You can also open the Web-Administration via the Server Manager.
- Web applications#
The XPhone Connect web applications are XPhone Connect Mobile, XPhone Connect Analytics, XPhone Connect UMSettings and XPhone Connect Meeting. These web server applications are created with the XPhone Connect Server installation in Microsoft IIS.
- Web service#
XPhone Server can be installed in an operating mode As Web Service. In this operating mode, the XPhone Connect Web applications are installed on the Microsoft IIS (web server).
- XCAPI#
For the Unified Messaging features you need an XCAPI controller which is connected to a PBX or SBC via a VoIP trunk (SIP or H.323).
- XCC#
The XPhone Call Controller can be operated either locally on the XPhone Server or remotely on a Satellite. Is required for AnyDevice, Softphone, Mobile or Meeting.