Gaytes Information Systems Private Ltd is a leading Provider of Inbound - Outbound, Blended, Asterisk IP PBX, IP PBX, Call Centers, Contact Centers, Panasonic PBX, NEC PBX, Siemens PBX, Avaya IP 500 PBX, Nortel BCM 50/500 PBX, Cisco Call Manager 5.0 PBX, Avaya IP 500 PBX, Nortel BCM 50/