Call and text from Bitrix24 — no VoIP, no gateways
just your SIM card

Two-way calls and SMS
Automatic CRM logging
Zero VoIP fees
Your number, your SIM card
Android Phone
SIMtrix Bridge
Real-time
CRM
Bitrix24 CRM
Bitrix24 Marketplace Partner
Compatible with all Bitrix24 plans
EU Servers
GDPR Protected

Your number. Your phone.

You want to call from your own number — not anonymous VoIP

Work from CRM.

You want to handle calls and SMS from Bitrix24 — not reach for your phone

SIM no-limit? Use it.

Your SIM card is unlimited — why pay extra for VoIP and SMS gateways?

SIMtrix connects it all.

3 simple steps

Up and running in 5 minutes

1

Register your account

Create your SIMtrix account and configure your workspace

2

Launch SIMtrix from Bitrix24 Marketplace

Install the SIMtrix app directly from the Bitrix24 Marketplace

3

Install the app on your phone

Download the Android app, log in, and select your SIM card

That's it. Call, text, directly from Bitrix24. Log calls and SMS automatically. Send SMS campaigns bypassing Android and carrier limits. Record calls safely and analyze.

Ready to start?

Try free

What makes SIMtrix unique

Features you won't find anywhere else

Full two-way call and SMS communication

The only solution supporting both incoming AND outgoing calls and SMS through your SIM card integrated with Bitrix24. Every interaction automatically logged on the contact card.

SMS campaigns bypassing limits

The only app for SMS campaigns from Bitrix24 that bypasses Android and carrier limits. Configurable intervals, send windows, multi-phone distribution.

Cost protection — allowed country codes

Define allowed country codes per SIM card. Prevent accidental international calls or SMS. Full cost control for your team and campaigns.

Calculate Your Savings

Your Team Parameters

Based on 1.5 min per manual action (dial, switch apps, log in CRM)

Includes 12% distraction overhead from context switching

Daily saving per person

39min

Monthly team saving

70.8h

Calculation breakdown

Actions per day23
Time per manual action1.5 min
Distraction overhead12%
Working days/month22

Frequently asked questions

SIMtrix is a bridge between your Android phone's SIM card and Bitrix24 CRM. It enables two-way calls and SMS directly from Bitrix24 through your real phone number.

No. SIMtrix works exclusively with your physical SIM card. Calls and SMS are free — you only pay your mobile carrier's rates.

SIMtrix Bridge works on Android 8.0 (Oreo) and above. We recommend Android 10+ for the best experience.

Yes. SIMtrix supports Dual SIM phones and multiple phones per organization. Each SIM can be assigned to a different Bitrix24 user.

Absolutely. SIMtrix operates on the 'Bridge not Storage' principle — we relay communications but don't store SMS content or call recordings. Your data stays on your phone and in your Bitrix24.

SMS campaigns are queued with configurable intervals (minimum 35 seconds) to avoid carrier blocking. You can set send windows, use multiple phones, and track delivery in real-time.

Yes, call recording is available on supported devices. Recordings are uploaded directly to Bitrix24's call record system.

SIMtrix monitors phone status in real-time. If the phone goes offline, the system queues commands and retries when the device reconnects.

About 5 minutes. Install the Bitrix24 app, download the SIMtrix Bridge to your Android phone, log in, and you're ready to go.

Yes! Every plan includes a 14-day free trial with full features. No credit card required.

14-day free trial

Ready to connect your SIM with Bitrix24?

Start your 14-day free trial. No credit card required. Full features from day one.

Start free trial

No credit card required