This is a tough category because all telephone service companies have complaints on public forums. Remember that people who comment on these forums are more likely to be unhappy with the service, while happy people don't frequently take to publicly announcing their happiness with a product. Acknowledging that all the companies we looked at have some complaints, the winner for best service is Vonage, one of the first phone companies to offer VoIP for business.
If you’re recording your voicemail greeting during a busy time of the day and there’s a ton of background noise, there’s a chance it might interfere with the call-to-action you want your customer to perform. If you’re not speaking directly into the phone and your voice is breaking up, put the phone closer to your mouth, speak slowly, and read from a script if necessary.

The AT&T Synapse works the way you do — no headaches, hassles or hidden costs. Large backlit displays, web-based system administration, familiar call handling and features, scheduled-based auto attendant, built-in voicemail, dial-by-name (first or last) functionality, and inbound call routing rules, the Synapse has the most features in its class.
With Panasonic, it’s your choice to have your phone services hosted in the cloud or installed to traditional landline phone lines in your closet — whatever makes the best financial sense for your organization right now. Because of its exceptional DECT cordless handheld telephone capabilities, this system is also ideal for installations where mobility is essential such as retail, manufacturing, and warehouses.