The Yeastar PBX S100 Phone System has the following features:

• Yeastar S100 VoIP PBX has 100 users (expandable to 200) and 30 concurrent calls (expandable to 60)
• Built-in call recording capability
• Includes 100 SIP trunks
• Connect multiple sites and remote users instantly
• Add optional modules to activate additional ports up to 16 Analog, 16 BRI, 6 GSM, and 2 E1/T1/J1
• Includes 10,000 minutes of expandable voicemail storage
• Add D30 module to expand capacity by 100 extensions and 30 concurrent calls
• 2 interfaces for expansion cards (EX08 1 PRI card or EX30 mounting card for 4 modules)
• Add on powerful apps including auto provisioning, LDAP, and more
• Free lifetime software/firmware upgrades
• Low power consumption at 5.5-41.2W
• Automated attendant (IVR)
• Email to SMS/SMS to email
• Fax to email
• Paging/intercom
• Mobility extension
• SIP forking
• Voicemail to email
• 1U rack mountable