- - 1GHz quad-core Cortex A9 application processor, large memory (1GB DDR3 RAM, 32GB Flash) and dedicated high performance multi-core DSP array for advanced voice processing
- 1 integrated T1/E1/J1 interface, 2 PSTN trunk FXO ports, 2 analog telephone/Fax FXS ports with lifeline capability in case of power outage
- Supports up to 2,000 users, 200 concurrent calls, and 64 simultaneous conference attendees
- Hardware DSP based 128ms-tail-length carrier-grade line echo cancellation (LEC), hardware based caller ID/call progress tone and smart automated impendance matching for various countries
- Gigabit network port(s) with integrated PoE, USB, SD card; integrated NAT router with advanced QoS suppor

FEATURE AND FUNCTIONALITY
Intergral Switch	10/100
Display	384 x 106 pixel-based, anti-glare graphical monochrome display
Integrated Video	No
Touch Screen	No
Speakerphone	Yes (Narrowband)
Number of Line keys	0
Programmable (Soft) keys	4
Fixed Feature Keys	11 (No headset audio key)
Advanced Features	Wideband audio available with purchase of wideband handset; Mobile Remote Access without a VPN client through Cisco Expressway; Registration flexibility on-premises or to Cisco Webex in the cloud
Handsfree	Yes
Message Waiting Indication	Yes
Third Party XML Support	Yes
Headset Port	No
Signaling Protocal	SIP
802-3AF	Yes
Cisco Power	No
PoE Classification	Class 1
DHCP	Yes
802-1p/q	Yes
Codecs	G.711a/μ, G.722, G.729a, iLBC and OPUS
Supported Cisco Call Control Platform(s)	CUCM: 8.5.1, 8.62, 9.1.2, 10x and later Bus. Edition: 8.6.2 HCS: 9.1.2 Cisco Webex: Requires Cisco Webex Phone OS 11.0 or later
UC Manager Encryption Support (TLS/SRTP)	Yes
Notes	FIPS 140-2 Level 1: Requires Phone OS 11.5 or later
PID	CP-7811-K9= CP-7811-3PCC-K9= Multiplatform Phone: (Cisco-approved Service Providers)

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Grandstream Innovative IP PBX APPL

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