Patton offers its Carrier customers fully interoperable and pre-qualified integrated solutions. Patton's interoperability program extends beyond the lab, certifying Softswitch vendors when interoperability is both lab tested and demonstrated in live Carrier deployments. The follow list of Softswitch products have been certified by Patton, as well as other Carriers, for inter-operability with Patton's SmartNode and SmartLink Voice Over IP Gateways, Routers and Multi-Media Gateway Products.

The following list describes all known interoperable softswitches.

Partner		Certified Softswitch Product	With the following Patton CPE	Certification Level
	AareNet	AareSwitch Release 3.0 and higher	All SmartNodes	Extensive Carrier Deployments
	Alcatel	5020 Platform CSC	All SmartNodes and SmartLink Products	Extensive Carrier Deployments
	Broadsoft	Broadworks	All SmartNodes and SmartLink Products	Carrier Deployments, Lab Tests
	Cedar Point Communications	SAFARI C3	All SmartNodes	Lab Tests
	Centile	IntraSwitch	All SmartNodes	Lab Tests, Pending Deployments
	Cirpack	Multi-Node Series	All SmartNodes	Carrier Deployments, Lab Tests
	Huawei	SoftX3000 and SE2300	All SmartNode Products	Carrier Deployments, Lab Tests
	Nortel	Multi-Media Communications Server Platform including the CS2K and CS5200	All SmartNodes and SmartLink Products	Lab Tests, Extensive Carrier Deployments
	SER	Open Source SIP Server 0.9.0 and higher	All SmartNodes	Carrier Deployments
	Siemens	SURPASS softswitch suite, hiQ9200 and hiQ8000 Series	All SmartNodes	Extensive Carrier Deployments
	Sylantro	Applications Feature Server	All SmartNodes and SmartLink Products	Lab Tests, Pending Deployments
	Tekelec	T9000 Platform	SmartLink Products	Carrier Deployments