Edited sentence: Some of the more common complaints include developers who are ill-prepared for the task at hand, a combative attitude toward customers who voice concerns, frequent bug reports (including re-occurring bugs), and at least one incident where Avaya abandoned a customer during a project to roll out a needed upgrade, due to personality conflicts.There has been anecdotal evidence that Avaya has a history of difficulties in deploying products to customer sites.Whether this is systemic or merely a localized series of events is yet to be determined