We just implemented a voice mail solution for one of our call center. The solution is totally based on open source software, they are Asterisk and OTRS. When voice mail is required, Avaya simply redirect the call to Asterisk and Asterisk will convert the voice mail to email, OTRS will pick up the email and put every voice mail in the related queue. Agents then handles each voice mail as ticket, they listen to it, write down the details and close it when the job is done. We as IT, can backup and retrieve the voice mails very easily. The solution works great and the cost is very low compared to Avaya’s solution. Thanks Open Source.