What are the limitations?

There is a Fair usage policy for Premium that defines how much you can use the service for free.


  • FREE phone number
    One free phone number per team member. Limitations apply.
  • FREE calls and call forwarding
    Free calls worth $30 per user and month.
  • FREE Twitter account connection
    Connect one Twitter account for free. Each additional connection at $25 per month.
  • FREE Conference calls
    Max 25 participants. Each user may only have one conference call at a time.
  • FREE Incoming calls on Sonetel phone numbers that are forwarded to Voice apps or VoIP devices.
    2,500 minutes per Sonetel phone number and month.
  • FREE Voice response
    10,000 usages per customer account and month.
  • FREE Text-to-speech
    Generate 500 free Text-to-speech recordings per month. Overuse is charged at $0.02 per minute started.
  • FREE Fax-to-email
    1,000 faxes per Sonetel phone number and month.
  • FREE SMS-to-email
    2,500 SMSs per Sonetel phone number and month.
  • More free data storage
    100 GB data storage per team member.
If you activate the Premium plan after purchasing a phone number, then the free Premium benefits with the number are activated after the number’s next renewal date.
The free call value of $30 is calculated based on the regular call prices without any discounts.
You must maintain a positive prepaid balance to be able to make and forward free calls with Premium.

Incoming call minutes on Sonetel numbers are only free on local phone numbers and national numbers. Toll free numbers do not include free minutes.

The service is intended for normal individual business use and may not be used for telemarketing or mass-calling activities or any other unintended usage. Each user may only make one call at a time and max 8 hours of calls per day. Sonetel Premium may not be used if you are connecting a PBX such as Asterisk to the Sonetel Service or if you forward incoming calls to a call center.

Extra charges: Sonetel reserves the right to charge extra for usage beyond the allowed usage levels and for usage that does not comply with the intended type of use at the following rates; International calls: $0.04 per minute, Incoming calls on Sonetel numbers: $0.02 per minute. Conference calls: $0.05 per minute and participant. $0.01 per Fax-to-email and $0.01 per SMS-to-email. Text-to-speech: $1 per recording. Sonetel reserves the right to adjust these terms. Twitter account: $25 per month for each additional connection beyond the free limit.

Please note that incoming calls to numbers with a higher per minute cost for incoming calls – such as Toll free numbers, numbers in China, India and Honolulu and Alaska  USA – are not free with Premium.