| Full technical details as follow 
 Technical Specifications
 
 Platform compatibility:
 
 * Nortel Multimedia Communication Server 5100 Rls 3.5 and 4.0
 * Nortel Communication Server 2000 Rls SN09U and SN10 (planned December 2007)
 
 Display
 
 * High resolution, graphical, fully-backlit, 16-bit color (65,535 colors) Liquid Crystal Display (LCD) using TFT (Thin Film Transistor) technology\
 o Quarter Video Graphics Array (QVGA) Resolution
 o Approximately 3.5" / 89mm diagonal
 o 2.80" x 2.09" / 71mm x 53mm (W x H)
 o 320 pixels x 240 pixels (W x H)
 * Configurable backlight timer extends the quality of the display experience with a user-defined time setting (ten seconds to one hour)
 
 Camera
 
 * Image sensor: 1/4.5-inch Complementary Metal-Oxide Semiconductor (CMOS)
 * Pixel resolution: 300K - VGA (Video Graphics Array)
 * Captures still (JPG format) or video images (up to 15fps)
 
 Processor and memory
 
 * CPU: Intel PXA 270 processor @ 416MHz
 * SDRAM: 64 MB (Synchronous Dynamic Random Access Memory)
 * Flash: 128 MB (NAND Memory)
 
 IP Phone footstand/display adjustment
 
 * Desktop footstand attachment (optional) raises the IP phone to an optimal angle for video camera usage
 * Desktop viewing adjustments with full range tilt display (0 to 60 degrees)
 
 Fixed and soft label keys
 
 * Eight – Telephony-related keys (Send/Handsfree, Goodbye/Release, Video Start, Video Stop, Record, Video Mode, Favorites, Messages)
 * Two – Context-sensitive soft keys
 
 Navigation cluster
 
 * Four-way navigation cluster (left, right, up, down arrows) plus right/left click keys (for web browsing)
 
 Enhanced text entry capabilities
 
 * “T9” (Text on 9 keys) dialpad support for predictive English, French, German, Portuguese or Spanish text entry
 
 Card slots
 
 * Subscriber Identity Module (SIM) Reader Slot
 * Secure Digital (SD) / MultiMedia Card (MMC) slot for external device storage (Support for up to 1GB SD/MMC card size)
 
 Administration
 
 * Static and Dynamic Host Control Protocol (DHCP factory default)
 * File Transfer Protocol (FTP)
 
 Dimensions and weight (approximate)
 
 * Size (W x D x H)
 o 7.48in x 4.88in x 7.48in / 190mm x 124mm x 190mm - without desktop footstand (Display fully raised – 60 degrees)
 o 7.48in x 6.01in x 7.76in / 190mm x 156mm x 197mm - with desktop footstand (Display fully raised – 60 degrees)
 * Weight (phone, desktop footstand, handset and handset cord)
 o 2.06 lbs / 0.94kg
 
 Color
 
 * Silver metallic finish
 
 Connectivity/data rates
 
 * Wired connection
 o Integrated 10/100 Base-T Fast Ethernet (auto-negotiation)
 * Wireless connection
 o Integrated IEEE 802.11b/g Wi-Fi radio with Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), Wi-Fi Protected Access - Pre-Shared Key (WPA-PSK) and Wi-Fi Protected Access 2 – Pre-Shared Key (WPA2-PSK) support
 
 Power
 
 * Universal AC power supply input: 100V~240V AC, 50~60Hz at 0.22A delivering 5V DC at 3A
 * Country-specific power cord with IEC-620 connector
 
 * Note: Remote powering of the IP Phone 1535 via IEEE 802.3af Power over Ethernet (PoE) is not supported.
 
 Protocol support
 
 * Transport:
 o User Datagram Protocol (UDP) - RFC 768
 o Transmission Control Protocol (TCP)- RFC 793
 o Simple Traversal of UDP through NAT (STUN) - RFC 3489
 * TCP/IP:
 o Dynamic Host Control Protocol (DHCP) - RFC 2131/RFC 2132
 o Domain Name System (DNS) – RFC 1034 / RFC 1035
 o Hypertext Transfer Protocol (HTTP) - RFC 2616
 o File Transfer Protocol (FTP) - RFC 959
 o Trivial File Transfer Protocol (TFTP) - RFC 783
 * Signaling:
 o Session Initiation Protocol (SIP) - RFC 3261
 o Session Description Protocol (SDP) - RFC 2327
 o Dual-Tone Multifrequency (DTMF) Digits - Telephony Tones & Signals - RFC 2833
 * Voice / Video:
 o Real-time Transport Protocol (RTP) - RFC 1889
 o Real-time Transport Control Protocol (RTCP) - RFC 1890
 o RTP Payload Format for H.264 Video - RFC 3984
 * E-mail:
 o Simple Mail Transfer Protocol (SMTP) - RFC 821
 o Post Office Protocol - Version 3 (POP3) - RFC 1939
 o Internet Message Access Protocol (IMAP) - partial support
 
 Audio and video quality of service
 
 * Audio:
 o G.711 u-law, G.711 a-law, G.723, G.729 and Adaptive Multi-Rate Narrow-Band (AMR-NB)
 * Video:
 o H.263 (RFC 2190) and H.264
 o QCIF (Quarter Common Intermediate Format) video formats
 
 File format support
 
 * Image file formats
 o JPG (Joint Photographic Experts Group) - JFIF:1.01
 o PNG (Portable Network Graphics) - PNG version 1.2
 o GIF (Graphics Interchange Format) GIF87a, GIF89 (Does not support animated gif )
 * Audio file formats
 o MIDI (Musical Instrument Digital Interface) - Standard MIDI Files 1.0
 o WAV (Waveform audio format) - CCITT u-law format, 8000Hz, 16bit Sampling, 1998 Windows PCM format, 8000Hz, 16bit Sampling
 o IMY (iMelody Ringtone Format) - iMelody version v1.0, v1.1 , v1.2
 * Video file formats
 o 3GP (Third Generation Partnership Project) movie file format
 o 3GPP (Third Generation Partnership Project) TS.26.140 version 6 format
 
 Menu language support
 
 * English (US), French (Canadian), Spanish (LA), Korean, Portuguese, German
 
 Operating temperature
 
 * +0°C to +40°C / +32°F to +104°F
 
 Relative humidity
 
 * 5% to 95% (non-condensing)
 
 Storage temperature
 
 * -20°C to +65°C / -4°F to +149°F
 
 EMC
 
 * United States: FCC CFR 47 Part 15 Class B
 * Canada: ICES-003 Class B
 * European Union:
 o EN 55022:1998 + A1 & A2 (Class B)
 o EN 55024:1998 + A1 & A2
 o EN 61000-3-2
 o EN 61000-3-3
 * China CCC
 * Brazil Anatel Requirements
 * Mexico (COFETEL)
 
 Safety
 
 * United States: UL 60950-1 1st Edition
 * Canada: CSA 60950-1-03
 * European Union: EN 60950-1
 * International: IEC 60950-1
 * China CCC
 * Mexico NOM Approvals
 
 Wireless regulatory identification/compliance (for Wi-Fi radio)
 
 * United States: FCC Part 15 Wireless Certification
 o FCC ID: AB6IP1535
 o FCC Registration No.:US:AB6IP16BIP1535
 * Canada: IC RSS 210 Wireless Certification
 o Canada IC No.: IC:332E-IP1535
 * European Union:
 o EN 300 328 V1.6.1
 o EN 301 489-1 V1.6.1
 o EN 301 489-17 V1.2.1
 * China CCC
 * Brazil Anatel Requirements
 * Mexico (COFETEL)
 
 US/Canada/EU Countries
 
 * United States/Canada: Hearing Aid Compatibility (HAC) as per FCC Part 68 and Industry Canada CS-03 Part V
 * Compliant at general availability to the Reduction of Hazardous Substances - RoHS (6 of 6) requirement as part of the European Union Environmental Directive (EUED)
 * Complies with CE Marking Requirements; this device complies with the essential requirements and other relevant provisions of Directive 1999/5/EC
 * American Disabilities Act (ADA) compliant dialpad
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