Contacts
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Below are the contact information for the country you selected and a URL to that country site or regional site.


Switzerland 
Contact Information
Avaya Switzerland GmbH
Main Office, Hertistrasse 31, P.O. Box 657 
8304 Wallisellen, Switzerland 
letteravayach@avaya.com
Phone+41 44 878 14 14
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Geneva Branch
12, Avenue des Morgines 
1213 Petit-Lancy, Switzerland 
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Avaya Switzerland GmbH
Marketing, Hertistrasse 31, P.O. Box 657 
8304 Wallisellen, Switzerland  
lettermarketingch@avaya.com
Phone+41 44 878 15 54
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URLs
Switzerland - French: http://www.avaya.com/ch-fr/
Switzerland - German: http://www.avaya.com/ch-de/