Contacts

UK & Ireland
UK Head Office
Avaya House
Cathedral Hill
Guildford, Surrey,
GU2 7YL

Phone:
01483 308 000

Avaya Ireland
25-29 Mervue Business Park
Mervue, Galway

Phone:
+353 (0)1 207 5600

Scotland Office
Suite 3G, Willow House
Strathclyde Business Park
Bellshill
ML4 3HB

Phone:
01483 308000  
Corporate Headquarters
Avaya Inc.
4655 Great America Parkway
Santa Clara,CA 95054
USA

Phone:
+1-908-953-6000  
Other Contacts
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Worldwide Directory
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