Patton SmartNode 4990 Series Multi-Port T1/E1/PRI IAD
IP-enable legacy PBX systems with one Enterprise-class SmartNode 4990 VoIP Integrated Access Device. Supporting up to 120 concurrent VoIP calls, the SN4990 with built-in G.SHDSL or X.21 enables Broadband Providers to connect existing PBX systems with advanced IP telephony services and the PSTN.




