Aastra 6751i

Exceptional Features and Value in a Basic Level IP Telephone

Features

• XML Browser
  The Aastra 6751i is equipped with XML browser capabilities allowing access to customized services and applications. Create internal service applications using development guides available from Aastra. This feature provides unlimited potential to customize the 6751i to meet your specific business needs or vertical applications using the display keypad.

• Enhanced Call Management
  With extensive storage capacity for personal directory, callers log, and redial list, the Aastra 6751i can improve efficiency by providing more call information with the push of a button. Features such as shared call and bridged line appearances, call forward, call transfer and call waiting increase call flexibility and control. 

• Remarkable Audio
  All 67xi Series IP Telephones offer full-duplex speakerphones. With the addition of our wideband audio technology, Aastra Hi-Q™, Aastra SIP phones now deliver enhanced audio performance and superior voice clarity.

• Simplified Deployment
  From initial deployment and configuration to future enhancements and upgrades, the Aastra family of IP telephones are designed to save your business time and money. Dual auto-sensing switched Ethernet ports eliminate additional wiring and simplify installations. Integrated IEEE 802.3af Powerover- Ethernet allows easy deployment with centralized powering and backup. Easily created configuration files, using any text editor, can be used to configure phones individually or centrally.

Current Software Release
	6751i SIP, V2.5.3.2002 Patch, April 2010 , English , ZIP , 1,891 KB
	67xi (5xi) series, 9143i, 9480i, 9480i CT SIP Phone Release Notes, v2.5.3.18, January 2010 , English , PDF , 240KB
Current Language Pack
	Language Pack, v2.5.3.18, January 2010 , English , ZIP , 122 KB
Encryption Tool
	IP Phone Configuration File Encryption Tool - Microsoft Windows , Version 2.x, July 2008 , English , ZIP , 48 KB
	IP Phone Configuration File Encryption Tool - Linux, Version 2.x, July 2008 , English , ZIP , 9 KB
XML - API
	XML Development Toolkit 67xi, (5xi) series, 9143i, 9480i, 9480i CT, V2.5.3.18, January 2010 , English , 4,694 KB
Previous Software Release
	6751i(51i) SIP, V2.5.3.18, January 2010 , English , ZIP , 1,889 KB
	6751i (51i) SIP, V2.5.2.1010 patch, September 2009 , English , ZIP , 1,883 KB
	6751i (51i) SIP, V2.5.2.30, August 2009 , English , ZIP , 1,830 KB
	6751i (51i) SIP, V2.5.1.2000 patch, July 09 , ZIP , 1,830 KB
	6751i (51i) SIP, Version 2.5.1, May 2009 , English , ZIP , 1,880 KB
	6751i (51i) SIP, V2.5.0.2000 patch, July 09 , ZIP , 1,840 KB
	51i(6751i) SIP, Version 2.5, March 2009 , English , ZIP , 1886 KB
	6751i (51i) SIP, V2.4.1.2000 patch, July 09 , ZIP , 1,820 KB
	51i (6751i) SIP, Version 2.4.1.1014 Patch, March 2009 , English , ZIP , 1871 KB
	51i (6751i) SIP, Version 2.4.1, January 2009 , English , ZIP , 1870 KB
	6751i (51i) SIP, V2.4.0.2000 patch, July 09 , ZIP , 1,820 KB
	51i SIP, Version 2.4.0, November 2008 , English , ZIP , 1866 KB
	51i SIP, Version 2.3.1, September 2008 , English , ZIP , 1815 KB
	51i SIP, Version 2.3, July 2008 , English , ZIP , 1814 KB
	51i SIP, May 2008, Version 2.2.1 , English , ZIP , 1819 KB
	51i SIP, March 2008, Version 2.2 , English , ZIP , 1808 KB
	51i SIP, Dec 2007, Version 2.1.2 , English , ZIP , 1,700 KB
	51i SIP, Oct 2007, Version 2.1.1 , English , ZIP , 1,693 KB
	Software 51i SIP , July 2007, Version 2.1 , English , ZIP , 1,684 KB
Previous Release Notes
	67xi (5xi) series, 9143i, 9480i, 9480i CT SIP Phone Release Notes, V2.5.2.1010 patch, September 2009 , English , PDF , 221 KB
	67xi (5xi) series, 9143i, 9480i, 9480i CT SIP Phone Release Notes, Version 2.5.2.30, August 2009 , English , PDF , 340 KB
Previous Language Pack
	Language Pack, V2.5.2.30, August 2009 , English , ZIP , 128 KB
	Language Pack, V2.5.1, May 09 , ZIP , 110 KB
	Language Pack, V2.5, March 09 , ZIP , 110 KB
	5xi (675xi) series, 9143i, 9480i and 9480iCT Language Pack, Rev 2.4.1, January 2009 , English , ZIP , 82 KB
	5xi series, 9143i, 9480i and 9480iCT Language Pack, Rev 2.4.0, November 2008 , English , ZIP , 82 KB
	5xi series, 9143i, 9480i and 9480iCT Language Pack, Version 2.3.1, September 2008 , English , ZIP , 81 KB
	5xi series, 9143i, 9480i and 9480iCT Language Pack, Version 2.3, July 2008 , English , ZIP , 81 KB
	5xi series, 9143i, 9480i and 9480iCT Language Pack, Version 2.2.1, May 2008 , English , ZIP , 79 KB
	5xi series Language Pack , April 2008, Version 2.2 , English , ZIP , 78 KB
	5xi series Language Pack, Dec. 2007, Version 2.1.2 , English , ZIP , 74 KB
	5xi series Language Pack, Version 2.1.1 , English , ZIP , 74 KB
	5xi series Language Pack, July 2007, Version 2.1 , ZIP , 49 KB

	6751i [51i] Datasheet , July 2009 , English , PDF , 243 KB
	Aastra IP Phone Matrix , April 2010 , English , PDF , 2,781 KB

	Aastra 51i Installation Guide , English , PDF , 4,444 KB
	Aastra 51i Installation Guide , French , PDF , 4,913 KB
	Aastra 51i Installation Guide , Spanish , PDF , 4,729 KB
Labels Template
	67xi (5xi) Key Labels Template , V1.3 , English , PDF , 1,061KB

	6751i (51i) User Guide, Version 2.5 Intl , English , PDF , 9,380 KB
	67xi (5xi) series, 9143, 9480i and 9480i CT SIP Phone Administrators Guide, Version 2.5, Rev 2 , English , PDF , 19,141 KB
Previous User Manuals
	67xi (5xi) series, 9143i, 9480i, 9480i CT SIP Phone Release Notes , Version 2.5.1, May 2009 , English , PDF , 549 KB
	5xi (67xxi) series, 9143i, 9480i and 9480iCT SIP Phone Release Notes , Version 2.5, March 2009 , English , PDF , 808 KB
	5xi (675xi) series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes , Version 2.4.1.1014 Patch, March 2009 , English , PDF , 535 KB
	5xi (675xi) series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes , Version 2.4.1, January 2009 , English , PDF , 863 KB
	51i (6751i) User Guide, Version 2.4 US , English , PDF , 11,348 KB
	51i (6751i) User Guide, Version 2.4 Intl , English , PDF , 11,577 KB
	5xi series, 9143i, 9480i and 9480iCT SIP IP Phone Administrator Guide, V 2.4.0, November 2008 , English , PDF , 18269 KB
	5xi series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes , Version 2.4.0 , English , PDF , 1402 KB
	5xi series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes , Version 2.3.1 , English , PDF , 1142 KB
	51i User Guide , Version 2.1 , English , PDF , 11,211 KB
	5xi series, 9143i, 9480i and 9480i CT SIP IP Phone Administrator Guide, Version 2.3, July 2008 , English , PDF , 18169 KB
	5xi series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes, Version 2.3 , English , PDF , 1521 KB
	5xi series, 9143i, 9480i and 9480iCT SIP IP Phone Release Notes , Version 2.2.1 , English , PDF , 900 KB
	Aastra Telecom 5xi series SIP IP Phone Release Notes , Version 2.2 , English , PDF , 4481 KB
	Aastra Telecom 5xi series SIP IP Phone Release Notes , Version 2.1.2 , English , PDF , 1,655 KB
	Aastra Telecom 5xi series SIP IP Phone Release Notes , Version 2.1.1 , English , PDF , 1,916 KB
	675xi (5xi) series SIP IP Phone Administrators Guide, Version 2.1, October 2007 , English , PDF , 10,912 KB
	Aastra Telecom 5xi series SIP IP Phone Release Notes , Release 2.1 , English , PDF , 2,164 KB

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