Ringless Voicemail Drops (Direct To Voicemail)

What is Ringless Voicemail?

It is also referred to as Direct To Voicemail or Ringless Voicemail Drops.

The technology has been available for many years, however, it was popularized by a company named slydial that sends one call at a time.

Sigma Voice offers an alternative that calls many phone numbers per campaign.

Basically, it is like a regular voice broadcast notification.

There must be a Caller ID, a Recording and a group of Customers to call.

There are a few key differences.

The customer phone numbers must be mobile phone numbers.

The customer's phone will not ring.

Your recording will be simply left on their voicemail.

Direct To Voicemail Features

Below are several features of this service.

Reach about 80% of mobile phones

Pay per delivered voicemails only

Recipient receives No Ring, No Missed Call and No Billing Charge

Send up to 1,000 calls concurrently

For those interested in reselling ringless drops, Sigma Voice also offers a white label platform.


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Kristin Taylor

Senior Living

Sigma Voice was so easy to set up. I needed to get an immediate message out to my 60+ family members. It’s affordable, the reports are amazing, and the customer service is beyond what I expected on a Sunday afternoon. Highly recommended!

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Pedro Hernandez

Medical Offices

This service is fantastic. Setting up automated calls is super easy and affordable. I highly recommend it.

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Emma Otto

Retail Stores

We have used SigmaVoice for our business for a few years now, and it has been a very good experience. The website is simple, straightforward, and easy to navigate. Customer service is excellent; professional and prompt.

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