2026-03-15
MicroSIP is a free, open-source, lightweight SIP softphone for Windows. It's small (under 5MB), fast, and does exactly what you need — make and receive SIP calls. It supports multiple codecs, caller ID, and works perfectly with SpoofGlobal.
Yes. MicroSIP is free and open-source. There are no paid tiers or hidden costs.
MicroSIP is Windows-only. For Mac, use Telephone or Zoiper. For Linux, use Linphone or Twinkle.
MicroSIP uses SIP registration (username/password). For IP2IP mode, you need a PBX system, not a softphone.
Change your caller ID in the SpoofGlobal Telegram bot. The change takes effect on your next call from MicroSIP.