Deskdotcom is a web based tool. There is no desktop client, all communications are done through your Deskdotcom website. It supports all phones including Blackberry if it has internet on it. A major difference with them and other services is that you are doing all work through their site where they make a specific page for your website.
The tool can be configured to get mails from your inbox and best part of it is that it provides you with one free operator for life time by just your adding a card with it which it uses to verify your mailing address. The $1 charge is just an authorization charge, to verify the credit card details you’ve provided. It’ll automatically remove itself from your account within 48 hours.
Means of Personalised Support through them for clarifications are Facebook, Twitter, Email and Phone. Presently they do not support through chat.
How to receive Notifications?
If you need to be notified when a new chat comes in, you’ll want to take a look at Routing
How to Install Chat widget in Blogger or as a matter of fact in any site?
Grab your widget from Admin → Channels → Chat → Widget and embed it where you want on your Blogger site.
Regarding the widget, if you’ve changed the default settings for offerAlways to False, and offerAgentAvailable to True, the widget will show or hide itself based on your availability.