You pay as you go. No subscription.

I want to contact:



$ /min


$ /num/month

Outbound (landline)

$ /min

Outbound (mobile)

$ /min

Billing is per second.



$ /sms


$ /sms

All rates are tax-excluded. Some destinations have specific rates. € = EUR, $ = USD.

Contact us for more information

We won't leave your questions unanswered

  • Is there a minimum contract period?

    CALLR is subscription-free. You only pay for what you use and can leave at anytime.

  • What payment methods are supported?

    • Prepaid: Credit card, wire transfers,
    • Postpaid (monthly billing): direct debit, wire transfers.
  • What does billing per second mean?

    All prices are displayed per minute as a standard. But we charge per second. For example, if you make a phone call of 1 minute and 23 seconds, you will be charged for 83 seconds nothing more.

  • With automated SMS concatenation and encoding, how do I know how much I will pay?

    SMS have a standard 160 characters limitation. When you send longer messages, we automatically concatenate them so that the recipient only receives one message even if it counts as 2 SMS.

    If you are using standard characters, we will use the GSM encoding. If your message contains special characters (like ç or ñ), we use Unicode encoding. What impact does it have on price?

    If your SMS is GSM encoded:

    • and contains less than 160 characters, it only counts for 1 SMS
    • and contains more than 160 characters, we count 1 SMS every 153 characters

    if your SMS is UNICODE encoded:

    • and contains less than 70 characters, it only counts for 1 SMS
    • an contains more than 70 characters, we count 1 SMS every 67 characters

    For example, if your message contains 235 characters, we will count 2 SMS if it doesn’t contain any special characters (GSM) and 4 SMS if it does (Unicode).

    At any time, you can force the encoding to use, using the “force_encoding” option. More informations on our API docs for SMS.