Bitrix24 Telephony Gateway — Your SIM Card as the Phone System
SIMtrix registers as a full telephony application in Bitrix24. No VoIP. No SIP trunks. Just your Android phone and SIM card.
Complete Bitrix24 Telephony Integration
SIMtrix is not a workaround — it is a registered telephony provider in Bitrix24.
Registered Telephony Application
SIMtrix uses the Bitrix24 REST API to register as an official telephony application. This means it appears in Bitrix24's telephony settings, supports the native call window, and integrates with all built-in telephony features — call logging, recordings, statistics.
Native Call Window Support
When calls are placed through SIMtrix, the standard Bitrix24 call window appears with contact info, notes field, and call controls. Your team uses the familiar Bitrix24 interface — the only difference is the call goes through a SIM card instead of VoIP.
Zero Infrastructure Cost
Traditional Bitrix24 telephony requires a VoIP provider, SIP trunks, and per-minute billing. SIMtrix replaces all of that with your existing mobile phone plan. No infrastructure, no per-minute costs, no number porting.
How It Works
How SIMtrix integrates with Bitrix24 telephony.
App Installed in Bitrix24
SIMtrix registers as a telephony provider via the Bitrix24 REST API using telephony.externalCall methods.
Calls Routed Through SIM
Outgoing calls from Bitrix24 are routed to your Android phone via WebSocket. Incoming calls are reported back to Bitrix24.
Full CRM Integration Active
Call logging, recordings, timeline entries, and automation triggers all work through the native Bitrix24 telephony framework.
Who Is This For?
The gateway approach benefits anyone who wants CRM telephony without VoIP complexity.
Small Businesses
Get full Bitrix24 telephony without buying VoIP equipment or SIP trunks. Your mobile phone becomes the office phone system.
Remote Teams
Each team member uses their own Android phone with their own SIM. All calls are logged centrally in Bitrix24.
IT Administrators
No VoIP infrastructure to maintain. No SIP configuration. No number porting. Just install the Android app and connect.
Related Features
Explore more SIMtrix capabilities that work seamlessly together.
Frequently Asked Questions
SIMtrix works with any Bitrix24 plan that supports REST API access and telephony integration. This includes most paid plans. Free plans have limited API access.
Yes. Bitrix24 supports multiple telephony providers simultaneously. You can use SIMtrix for mobile SIM-based calls and another provider for desk phones or VoIP.
SIMtrix uses telephony.externalCall.register, telephony.externalCall.finish, crm.activity.add, and other REST API methods to provide full telephony integration.
Replace VoIP with your SIM card
Full Bitrix24 telephony integration — zero infrastructure.
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