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Electronic Hook Switch Compatibility Table for Polycom SoundPoint, Nortel, and Cisco IP Phones

Telephone Model EHS cord for CS50, CS,55, CS70, CS70N, CS351N, CS361N EHS cord for Savi and CS500 Series (CS510, CS520, CS540)
Polycom SoundPoint IP APP-5 APP-51
320/321, 330/331, 335, 430, 450, 550, 560, 650, 670    
Cisco 7900 Series APC-4 APC-41
7942G, 7945G, 7962G, 7965G, 7975G    
Nortel 1100 Series APU-7 APU-71
1120E, 1140E, 1150E, 1165E    


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Metroline Inc. is an independent distributor of technology and telecommunications equipment.  Metroline Inc. does not represent  Avaya Communication,  Lucent Technologies,  Nortel Networks,  Cisco,  Toshiba, Mitel, NEC, Dell, ShoreTel or their affiliates in any way.  Merlin, Merlin Legend, Merlin Magix, Partner, Partner Plus, Partner II, Partner ACS, Spirit, Definity, IP Office, and Avaya Communication Manager are registered trademarks of Avaya Communication.  Norstar, Meridian, and Business Communication Manager are registered trademarks of Nortel Networks.