Hello,
As soon as I READ your job posting twice, I am very much interesting on your project.
I have worked on various vTigerCRM (1.x~7.x)
In fact, I have been worked all the versions.
Whatever you want, I can customize all the things.
((email templates, workflows customization, email campaigns, integration with IP phones, etc...)
I am ready to start your project immediately.
Please, contact me to discuss details and go ahead.
Thank you!
Leo