# Hardware and Software

- [PBX Equipment Manufacturers](/integrations-and-connections/hardware-and-software/pbx-equipment-manufacturers.md): List of PBX equipment manufacturers compatible with sipgate, including contact and website links.
- [My PBX Is registered, but I can not receive any calls (outgoing calls are fine)](/integrations-and-connections/hardware-and-software/my-pbx-is-registered-but-i-can-not-receive-any-calls-outgoing-calls-are-fine.md): Troubleshooting checklist when your PBX is registered with sipgate but cannot receive incoming calls.
- [FreePBX Configuration - sipgate SIP Trunking](/integrations-and-connections/hardware-and-software/freepbx-configuration-sipgate-sip-trunking.md): Step-by-step guide to configure a sipgate SIP Trunk on FreePBX, including trunk setup, outbound routes, and caller ID settings.
- [How do I configure My 3CX PBX for sipgate trunking?](/integrations-and-connections/hardware-and-software/how-do-i-configure-my-3cx-pbx-for-sipgate-trunking.md): Reference to 3CX online documentation for configuring 3CX PBX with sipgate trunking.
- [Configuring 3CX SIP Trunks](/integrations-and-connections/hardware-and-software/configuring-3cx-sip-trunks.md): How to configure 3CX to register with sipgate trunking, including trunk details, authentication, and outbound call settings.
- [Trunking: Cisco Call Manager Express PBX (UC520/540/560)](/integrations-and-connections/hardware-and-software/trunking-cisco-call-manager-express-pbx-uc520540560.md): Configuration information for Cisco Call Manager Express UC520/540/560 PBX with sipgate trunking, including Voice Class setup.
- [How do I configure the AVM Gateway 5188 for sipgate trunking?](/integrations-and-connections/hardware-and-software/how-do-i-configure-the-avm-gateway-5188-for-sipgate-trunking.md): Configuration guide for the AVM Gateway 4588 with sipgate trunking, including all required web menu settings.
- [Is SRTP/TLS Voice encryption possible with sipgate trunking?](/integrations-and-connections/hardware-and-software/is-srtptls-voice-encryption-possible-with-sipgate-trunking.md): Information about SRTP/TLS voice encryption availability with sipgate trunking and VPN as an alternative.