bids are invited for pabx - specifications:• to support sip trunk, digital isdn pri trunk & analog trunk• integrated lcr/ ars intelligence• integrated power full unified communication tool – uc smart• to support ip/sip trunking on homogenous & heterogeneous network• to support cordless ip-dect over ip solutions• to support voice over wireless telephony solution for mobility users on wi-fi network• call signaling, calling line id: clip, clir, colp ad colr• ucd(uniform call distribution): uniform distribution of incoming calls to a group of subscribers• smooth migration to in house contact center/ help desk center solutions• integrated pa/ local paging interface• emergency calls: hotline/ hotline after timeout or an emergency service• speed dialing and system directory services access• controlling availability: call forwarding ad call forwarding – no answer• conferencing: supports both application-controlled and phone-controlled conferences• easy operation: one number service for mobility/ flexibility pin portability/ disa/dosa etc.application: built in ip gate way interface , digital phone - specifications:• 5.1” graphical tiltable display – 6 line• integrated usp port & head set port• optical call alert• programmable keys for one touch operation• full duplex speaker phone with echo suppression• 5 way navigator , trunk card - 04port trunk card (co lines) total quantity : 1