AVAILABILITY
What works in early access
Where you can call, which phone numbers are available and what is not supported yet during Topaz early access.
Calling destinations
You can call the US and Canada. International destinations are not available yet. Calls to US & Canada toll-free numbers are included. See rates →
Phone numbers
Add local US and Canadian numbers in the Control panel, by area code. Each phone number costs $4.99 a month, taken from your credit every 30 days. Eligible new accounts (card saved at signup) get their first number’s first month free. If your credit can’t cover a number’s fee, we keep it for 7 days, then release it. Outbound calls show your Topaz number as caller ID.
Emergency calling
911 and other emergency calls are not supported during early access. Read this before you rely on Topaz →
Phones and connections
Any standard SIP desk phone or softphone can connect over the internet using UDP or TCP on port 5060. Encrypted calling (TLS and SRTP) is not available yet. Phones need power and a working internet connection.
Signing up
Sign up online at signup.topaz.tel. Prices and credit are in US dollars, and you pay by card on Stripe’s hosted checkout.