Complex sentence: MetaSwitch provides Telecoms hardware and software solutions to over 400 service providers and 250 equipment manufacturers around the world including AT&T, BT, Cisco, HP, IBM, and Microsoft.
Split into simpler sentences: MetaSwitch provides Telecoms hardware and software solutions to service providers and system vendors. The company develops and sells hardware and software technologies to over 400 service providers and 250 equipment manufacturers around the world including AT&T, BT, Cisco, HP, IBM, and Microsoft.