# Telephony

- [How can I use sipgate in combination with starlink?](/use-sipgate/telephony/how-can-i-use-sipgate-in-combination-with-starlink.md): How to use sipgate VoIP telephony with Starlink internet, including tips for stable connections and bypass mode.
- [How do I select or suppress my caller ID?](/use-sipgate/telephony/how-do-i-select-or-suppress-my-caller-id.md): How to select, change, or suppress your outgoing caller ID in your sipgate account settings.
- [How do I set up a central phone number?](/use-sipgate/telephony/how-do-i-set-up-a-central-phone-number.md): How to set up a central phone number with groups, time profiles, and public holiday forwarding in sipgate.
- [How does HD telephony work?](/use-sipgate/telephony/how-does-hd-telephony-work.md): How HD telephony works with sipgate, including requirements and codec support for high-definition voice quality.
- [How do I set up Time-Based Routing?](/use-sipgate/telephony/how-do-i-set-up-time-based-routing.md): How to configure time-based routing in sipgate to adjust call availability to office hours and breaks.
- [How to set up Plug & Play (Auto-Provisioning)](/use-sipgate/telephony/how-to-set-up-plug-play-auto-provisioning.md): How to set up Plug and Play auto-provisioning for Snom D-phones using MAC addresses in sipgate.
- [How do I set up automatic area codes?](/use-sipgate/telephony/how-do-i-set-up-automatic-area-codes.md): How to configure automatic area codes for local landline calls in your sipgate cloud phone system.
- [What do telephony & error codes mean?](/use-sipgate/telephony/what-do-telephony-error-codes-mean.md): Overview of common SIP telephony and error codes and their meanings in sipgate VoIP systems.
- [How can I make calls with sipgate?](/use-sipgate/telephony/how-can-i-make-calls-with-sipgate.md): Overview of ways to make calls with sipgate including Webphone, the sipgate app, and softphones.
- [How can I create and edit Telephony and Routing for a User?](/use-sipgate/telephony/how-can-i-create-and-edit-telephony-and-routing-for-a-user.md): How to assign phone numbers, create VoIP devices, and configure call routing for users in sipgate.
- [How do I use Do Not Disturb (DND) to mute my phones?](/use-sipgate/telephony/how-do-i-use-do-not-disturb-dnd-to-mute-my-phones.md): How to enable Do Not Disturb (DND) to mute phones and manage call forwarding in sipgate.
- [How can I send and receive SMS via sipgate?](/use-sipgate/telephony/how-can-i-send-and-receive-sms-via-sipgate.md): How to send, schedule, and receive SMS messages via sipgate, including charging rates and delayed messaging.
- [What is the sipgate Webphone?](/use-sipgate/telephony/what-is-the-sipgate-webphone.md): How to use the sipgate Webphone for browser-based VoIP calls, including features, transfers, and settings.
- [What is sipgate Call Recorder?](/use-sipgate/telephony/what-is-sipgate-call-recorder.md): How to activate, use, and manage sipgate Call Recorder for automatic outgoing call recording.
- [How do I set up a VoIP device or softphone?](/use-sipgate/telephony/how-do-i-set-up-a-voip-device-or-softphone.md): How to set up a VoIP device or softphone with sipgate using SIP credentials and configuration guides.
- [How can I set up Presence/BLF (Busy Lamp Fields)?](/use-sipgate/telephony/how-can-i-set-up-presenceblf-busy-lamp-fields.md): How to set up Busy Lamp Fields (BLF) to monitor colleague call status on your VoIP phone in sipgate.
- [sipgate Softphone for Windows](/use-sipgate/telephony/sipgate-softphone-for-windows.md): How to install, log in, and use the sipgate Softphone for Windows, including call transfer and recording.
- [sipgate Softphone for Linux](/use-sipgate/telephony/sipgate-softphone-for-linux.md): How to install, log in, and use the sipgate Softphone on Linux, including features and troubleshooting.
- [How can I configure Call Forwarding Rules for Users?](/use-sipgate/telephony/how-can-i-configure-call-forwarding-rules-for-users.md): How to configure call forwarding rules for users in sipgate, including conditional and time-based forwarding.
- [sipgate Softphone for macOS](/use-sipgate/telephony/sipgate-softphone-for-macos.md): How to install, log in, and use the sipgate Softphone on macOS, including call transfer and recording.
- [Enable Call Rate Announcement](/use-sipgate/telephony/enable-call-rate-announcement.md): How to enable call rate announcements in sipgate to hear applicable rates before outgoing calls.
- [How do I start Call Conferencing with sipgate?](/use-sipgate/telephony/how-do-i-start-call-conferencing-with-sipgate.md): How to set up and use call conferencing with sipgate, including booking rooms and three-way calls.
- [How do I start a call from my Online Account (Click2Dial)?](/use-sipgate/telephony/how-do-i-start-a-call-from-my-online-account-click2dial.md): How to use Click2Dial to start calls directly from your sipgate online account portal.
- [How can I use IVR (Interactive Voice Response) with sipgate?](/use-sipgate/telephony/how-can-i-use-ivr-interactive-voice-response-with-sipgate.md): How to set up and use IVR (Interactive Voice Response) with sipgate to route inbound callers automatically.
- [What is the Presence Display (Busy Indicator)?](/use-sipgate/telephony/what-is-the-presence-display-busy-indicator.md): How to use the Presence Display in sipgate to see which users are available or on a call.
- [How do I activate the Call Queue?](/use-sipgate/telephony/how-do-i-activate-the-call-queue.md): How to activate and configure the call queue feature in sipgate for group call management.
- [Which functions are available during a call?](/use-sipgate/telephony/which-functions-are-available-during-a-call.md): Overview of in-call functions available in sipgate, including transfer, conference, recording, and pick up.
- [What are codecs?](/use-sipgate/telephony/what-are-codecs.md): Overview of audio codecs used in sipgate VoIP telephony, including supported codecs and data usage.
- [How can I configure Local Device/Phone Call Forwarding?](/use-sipgate/telephony/how-can-i-configure-local-devicephone-call-forwarding.md): How to configure local call forwarding on VoIP phones from Snom, Yealink, Grandstream, Polycom, and Cisco.
- [Nuisance Calls and Spam-over-Internet-Telephony](/use-sipgate/telephony/nuisance-calls-and-spam-over-internet-telephony.md): How to deal with nuisance calls and SPIT (Spam over Internet Telephony), including blocking and TPS registration.
- [How do I set up a VoIP extension?](/use-sipgate/telephony/how-do-i-set-up-a-voip-extension.md): How to set up a VoIP extension in sipgate for location-based phones without user assignment.
- [How can I block the destinations Users can call?](/use-sipgate/telephony/how-can-i-block-the-destinations-users-can-call.md): How to configure call barring and block expensive or international destinations for users in sipgate.
- [How can I block unwanted calls (Blocklisting)?](/use-sipgate/telephony/how-can-i-block-unwanted-calls-blocklisting.md): How to block unwanted calls using the blocklist feature in sipgate, including anonymous call rejection and SPIT blocking.
- [How can I reject calls when busy (Busy on Busy)?](/use-sipgate/telephony/how-can-i-reject-calls-when-busy-busy-on-busy.md): How to enable the Busy on Busy feature in sipgate so callers hear a busy tone when you are on a call.
- [How to upload and manage customised music on hold](/use-sipgate/telephony/how-to-upload-and-manage-customised-music-on-hold.md): How to upload and manage custom music on hold for your sipgate account as an administrator.