> For the complete documentation index, see [llms.txt](https://help.sipgate.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie.md). # Telephony - [How can I make calls with sipgate?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-kann-ich-mit-sipgate-telefonieren.md): All ways to make calls with sipgate – via app, softphone, IP phone, or mobile network. - [How do I set up sipgate Webphone?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-sipgate-webphone-ein.md): Set up sipgate Webphone and make calls directly in the browser - without additional software. - [How do I record a phone call?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-zeichne-ich-ein-telefonat-auf.md): Record phone calls with sipgate - activate call recording and follow legal notes. - [How do I activate or deactivate the tariff announcement?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-aktiviere-oder-deaktiviere-ich-die-tarifansage.md): Activate or deactivate the tariff announcement in sipgate - inform callers about any charges incurred. - [How do I set up automatic prefix dialing?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-die-automatische-vorwahl-ein.md): Set up automatic prefix dialing in the sipgate cloud phone system so short numbers are completed correctly. - [What does DTMF mean?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-bedeutet-dtmf.md): DTMF explained: what Dual-Tone Multi-Frequency means and how keypad tones are transmitted with sipgate. - [How do I automatically reject calls when I am already on the phone?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-weise-ich-die-anrufe-automatisch-ab-wenn-ich-bereits-telefoniere.md): Disable call waiting in sipgate - automatically reject incoming calls when you are already on the phone. - [What is the busy lamp field (BLF)?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-ist-das-besetztlampenfeld-blf.md): Set up the busy lamp field (BLF) in sipgate - display colleagues' phone status on your own device. - [What do the telephony and error codes mean?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-bedeuten-die-telefonie-fehler-codes.md): Overview of sipgate telephony error codes (401, 403, 486, and others) with explanations and troubleshooting tips. - [What is presence display?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-ist-die-praesenzanzeige.md): The sipgate presence display shows the availability status of your colleagues in real time. - [How do I set up autoprovisioning?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-autoprovisionierung-ein.md): Set up autoprovisioning in sipgate - automatically configure and manage IP phones. - [How do I set up visual routing?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-visual-routing-ein.md): Set up visual routing in sipgate - create and manage call flows graphically. - [How do I set up time-based routing?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-zeitbasiertes-routing-ein.md): Set up time-based routing in sipgate - control calls based on office hours, holidays, and weekdays. - [How do I upload custom hold music when placing a call on hold?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-lade-ich-die-individuelle-wartemusik-bei-anruf-halten-hoch.md): Upload your own hold music in sipgate and use it as hold music for calls. - [How do I configure my softphone? - All softphones at a glance](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-konfiguriere-ich-mein-softphone-alle-softphones-im-ueberblick.md): Softphone configuration in sipgate - overview of compatible softphones and setup guides. - [How can I block certain call destinations?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-kann-ich-bestimmte-anrufziele-sperren.md): Block call destinations in sipgate - as an admin, block expensive international numbers or specific phone numbers. - [Block or redirect anonymous and unwanted calls](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/anonyme-und-unerwuenschte-anrufe-blockieren-oder-umleiten.md): Block or specifically redirect anonymous and unwanted calls in sipgate - set up in the account. - [How do I set up call forwarding?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-stelle-ich-weiterleitungen-ein.md): Set up call forwarding in sipgate - as a user or admin, define destinations for unreachable lines. - [How do I set up an additional VoIP line?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-voip-zusatzanschluss-ein.md): Set up an additional VoIP line in sipgate - phones without user assignment for reception or conference rooms. - [How does HD telephony work?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-funktioniert-die-hd-telefonie.md): HD telephony in sipgate: highest voice quality for VoIP calls - automatically included in all plans. - [How do conference calls work?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-funktionieren-die-telefonkonferenzen.md): Set up and use conference calls with sipgate - conference room, dial-in numbers, and participant management. - [How do I select or suppress the caller ID?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-waehle-oder-unterdruecke-ich-die-absenderrufnummer.md): Select or suppress the caller ID in sipgate - settings for outgoing calls. - [How do I set up a central phone number? - An example use case](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-eine-zentrale-rufnummer-ein-ein-anwendungsbeispiel.md): Set up a central phone number in sipgate - example use case for routing to teams and departments. - [What are the keyboard shortcuts in sipgate?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-sind-die-tastenkuerzel-bei-sipgate.md): Keyboard shortcuts during a sipgate call - hold, toggle, transfer, and other functions. - [How do I set up call forwarding on the end device?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-stelle-ich-eine-rufumleitung-am-endgeraet-ein.md): Set up call forwarding directly on the VoIP phone - instructions for sipgate-compatible end devices. - [How do I set up the function keys on the snom phone?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-die-funktionstasten-auf-dem-snom-telefon-ein.md): Assign function keys on snom IP phones with sipgate - set up speed dial and forwarding. - [How do I set up the function keys on the Yealink phone?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-die-funktionstasten-auf-dem-yealink-telefon-ein.md): Assign function keys on Yealink phones with sipgate functions - setup step by step. - [How can I set the phone to inactive (DND)?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-kann-ich-telefon-auf-inaktiv-stellen-dnd.md): Do Not Disturb (DND) in sipgate: temporarily disable phones so you do not receive calls. - [How do I use sipgate with Starlink?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-nutze-ich-sipgate-mit-starlink.md): Using sipgate with Starlink - important notes and settings for VoIP telephony over satellite internet. - [How do I block Direct IP (SPIT) calls from numbers like 100, 1001, or IP addresses?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-blockiere-ich-direct-ip-spit-anrufe-von-nummern-wie-100-1001-oder-ip-adresse.md): Block unwanted Direct IP calls (SPIT) on sipgate VoIP phones - protective measures and settings. - [Can I set international phone numbers as the caller ID?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/kann-ich-internationale-telefonnummern-als-absendernummer-setzen.md): Set international phone numbers as the caller ID in sipgate - requirements and limitations. - [How do I set up sipgate Softphone for macOS?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-sipgate-softphone-fuer-macos-ein.md): Set up sipgate Softphone on macOS - installation, Rosetta note for Apple Silicon, and configuration. - [How do I set up sipgate Softphone for Windows?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-sipgate-softphone-fuer-windows-ein.md): Set up sipgate Softphone on Windows - download, installation, and configuration step by step. - [How do I set up sipgate Softphone for Linux?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-sipgate-softphone-fuer-linux-ein.md): Setting up sipgate Softphone on Linux – download, installation, and configuration. - [How do I set up SIP signaling via TCP?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/wie-richte-ich-die-sip-signalisierung-via-tcp-ein.md): Configure SIP signaling over TCP in sipgate - for more stable VoIP connections behind firewalls. - [What are codecs?](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie/was-sind-codecs.md): Audio codecs explained in sipgate - which codecs are supported and how they affect voice quality. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/telefonie.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.