Skip to content
TrustList
MicroSIP logo
Softphone Software

MicroSIP

Lightweight open source SIP softphone for Windows built on the PJSIP stack

Write a review
Visit WebsiteGet a quoteWrite a Review
Own this listing? Claim it
MicroSIP cover

About MicroSIP

MicroSIP is a portable SIP softphone for Windows. It is open source and built on the PJSIP stack. It connects to any SIP provider or PBX for voice and video calls.

What MicroSIP offers

  • Voice and video — video with H.264, H.263+, VP8 and VP9, and a broad list of audio codecs including Opus.
  • Messaging and presence — SIMPLE messaging and presence support.
  • DTMF — in-band, RFC 2833 and SIP INFO.
  • Security — TLS for signalling and SRTP or DTLS-SRTP for media.
  • Audio processing — echo cancellation and voice activity detection.
  • Small footprint — written in C and C++ with low memory use.

Who it works with

It is used in offices, remote and hybrid work, customer support desks and small professional VoIP setups.

Key facts

  • Licence: GNU GPL v2
  • Platform: Windows
  • Standards: works with any SIP-compliant provider or server

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

Request a demo or quote from MicroSIP

Protected by reCAPTCHA — Google Privacy Policy and Terms apply.

By sending, you agree we may share your request and contact details with the provider once you confirm your email.

Reviews

Write the first review of MicroSIP

Used it? Your experience helps other buyers decide.

Write a review

Questions & answers

No questions yet. Be the first to ask about MicroSIP.

MicroSIP alternatives

Similar listings buyers compare against this one.

Compare side by side
Express Talk logo

Express Talk

Express Talk is softphone software from NCH Software that makes computer-to-computer and VoIP telephone calls on PC and Mac

VTALL logo

VTALL

H.323 softphone for enterprise telephony with call logging and recording, from IP blue

Hosted Phone Systems logo

Hosted Phone Systems

Cloud-based VoIP phone system from Acefone for business teams and contact centres

OnSIP logo

OnSIP

Hosted VoIP business phone system with apps, video calling and a free softphone

SmartLine logo

SmartLine

Mobile app that adds a second business phone number to a smartphone

11Sight logo

11Sight

One-click video call and AI voice agent software, now aimed at car dealership service departments

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.