REDCOM Sigma Client

Name: REDCOM Sigma Client
Rating: 4.4 (15 reviews)
Author: REDCOM Laboratories

By: REDCOM Laboratories App

Sigma Client is a VoIP Unified Communications client for voice, video & chat.

Overview

Google Play Store

Downloads

2,018 ▲ 5

Data as of 2026-11-05

Rating:

4.40

(15 ratings)

Version:

6.4.1build181

Last updated: 2026-10-01

Ranking

#915,527 ▲ 66,168

Overall

Features & Capabilities

REDCOM Sigma Client is a SIP-based VoIP Unified Communications client that provides secure voice, video, and chat functionality on Android devices. This stand-alone softphone app requires the REDCOM Sigma call controller for communication, with features including call forwarding, encryption, and dual registration. It supports a range of codecs and offers additional functionalities like emergency call handling, making it a robust choice for secure communications.

User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

6.4.1build181 Last updated: 2026-10-01

Version code:

861

Creation date:

2017-08-04

Publisher country:

Permissions:

android.permission.CALL_PHONE Very high risk
android.permission.CAMERA Very high risk
android.permission.GET_ACCOUNTS Very high risk
android.permission.READ_CONTACTS Very high risk
android.permission.RECORD_AUDIO Very high risk
android.permission.AUTHENTICATE_ACCOUNTS High risk
android.permission.MANAGE_ACCOUNTS High risk
android.permission.MANAGE_OWN_CALLS High risk
android.permission.FOREGROUND_SERVICE_PHONE_CALL Moderate risk
android.permission.FOREGROUND_SERVICE_SPECIAL_USE Moderate risk

Size:

99.34MB

Email:

mo*****@redcom.com

Website:

https://www.redcom.com DR 48

Privacy policy:

https://www.redcom.com/redcom-secure-client-privacy-policy/

Full description:

Source:

Google Play Store

Data ingested on:

2026-11-05

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:: REDCOM Laboratories
Google Play Store: https://play.google.com/store/apps/details?id=com.redcom.sigma
Email:: mo*****@redcom.com
Website:: https://www.redcom.com

User Reviews

I like the multi account system but the App doesn't ring! Mate20Pro Android 11 It will ring when open but when screen locked it just shows the UI for incoming call. Strange ways of picking a notification sound but no access to the ringtones? High battery usage. No push system? Contacts have more than one number but no way choose. No pasting numbers! Developer said it works with their server. BS! After Update still doesn't ring. Redcom Sigma won't change any of the above programming errors.