جراند ستريم سنترال 4 خطوط يدعم نظام الكلاود

Up to 1000 IP (SIP) Users and 150 concurrent calls, 4 PSTN Lines FXO Ports and 4 analog telephone FXS Ports,
7 meeting rooms and up to 150 parties
Auto Discovery and Zero Configuration of Grandstream SIP endpoints, 2*USB 3.0, 1*SD card interface,
Full API available for third-party platform and application integration.
Call Features: Call park, call forward, call transfer, call waiting, caller ID, call record, call history, ringtone, IVR, music on hold, call routes, DID, DOD,
DND, DISA, ring group, ring simultaneously, time schedule, PIN groups, call queue, pickup group, paging/intercom, voicemail, call
wakeup, SCA, BLF, voicemail to email, fax to email, speed dial, call back, dial by name, emergency call, call follow me, blacklist/whitelist,
voice conference, eventlist, feature codes, busy camp-on/ call completion, voice control, post-meeting reports, virtual
fax sending/receiving, email to fax