SIP Trunk Interconnection Guide

DIDForSale SIP Trunks are compatible with most SIP based PBX, Business Phone Systems and Devices.

Here is the list of the most popular SIP PBX systems that have been tested and work very well with our SIP Trunk Gateway.

PS: The list of Phone System PBX is in alphabetical order.

3cx	3CX configuration guide with DIDforSale SIP Trunk.
Allworx	Allworx configuration guide with DIDForSale
Asterisk	Asterisk SIP Trunk Configuration with DIDForSale
Cisco UCM	DIDForSale is Certified SIP Trunk provider for Cisco UCM
FreePBX	FreePBX SIP Trunk Configuration
Freeswitch	DIDForSale SIP Trunking configuration with Freeswitch
FusionPBX	FusionPBX Configuration with DIDForSale
Go Autodial	Go Autodial SIP Trunk Configuration with DIDForSale
GrandStream	DIDForSale SIP Trunk works with all GrandStream Devices.
HoduSoft PBX System	HoduSoft PBX configuration with DIDForSale
Microsoft Skype for Business	DIDForSale is a Certified SIP Trunk provider for Skype for Business
NEC Corporation	NEC Corporation configuration with DIDForSale
PBXinaFlash	PBXinaFlas configuration with DIDForSale
Polycom OBI300	Polycom configuration with DIDForSale
Shoretel	DIDForSale is a Certified SIP Trunk Provider for the Shoretel System
Vital PBX	Vital PBX Configuration with DIDForSale
Yealink Phones	Yealink Phone configuration with DIDForSale
Zycoo	Configure Zycoo SIP Trunk with DIDForSale

Something you should know about SIP Trunk Pricing

Unlike many platform providers, DIDForSale does not charge for calls sent to SIP Trunks and is one of the very few providers who offer unlimited minutes of SIP Trunks. If you have not done so, check out SIP Trunk Pricing