Modern iPhones support Dual SIM (physical + eSIM, or dual eSIM). This means you might have a personal number and a work number, a home number and a travel SIM, or a main number and a business line — all on one device.
The problem? Messages to your second number get lost in the same Messages app, mixed with personal texts. Fwrdly solves this by forwarding SMS from either SIM to separate destinations.
Common Dual SIM Scenarios
Work + Personal — Forward work SIM texts to Slack or work email. Keep personal texts on your phone.
Travel SIM — When abroad with a local SIM, forward texts from your home number to Telegram so you don’t miss bank codes or important messages.
Business Line — Forward customer texts from your business number to a shared team inbox or CRM webhook.
Testing — Developers with a test SIM can forward all incoming SMS to a webhook for automated testing.
How to Set It Up
Step 1: Install Fwrdly
Download Fwrdly from the App Store.
Step 2: Add Destinations
Set up where you want messages from each SIM to go:
- Work SIM → Slack channel
#work-sms - Personal SIM → keep on phone (no forwarding needed)
Or:
- Home SIM → Telegram (while traveling)
- Travel SIM → no forwarding
Step 3: Use Sender Filters
If you want to forward only messages from your work SIM contacts:
- Enable sender filtering in Fwrdly
- Add your work contacts or the numbers that text your work line
Step 4: Set Up Automation
Follow Fwrdly’s 6-step Shortcuts automation guide. The automation triggers for SMS received on either SIM — Fwrdly’s filters handle the routing.
Tips for Dual SIM Users
Label your lines — In Settings → Cellular, name your lines clearly (Work, Personal, Travel) so you always know which SIM is which.
Use keyword filters — If both SIMs receive OTP codes, filter by sender (bank number → email, social media → ignore).
Schedule by SIM use case — Forward work SIM messages only during business hours using Fwrdly’s schedule feature.
Multiple destinations — Forward the same message to both email (for archiving) and Slack (for team visibility).
Frequently Asked Questions
Does Fwrdly know which SIM received the message? iOS Shortcuts doesn’t differentiate between SIMs in the trigger. Fwrdly forwards based on content (keywords) and sender — use these filters to route messages from different lines.
Can I forward from eSIM? Yes. eSIM messages are treated the same as physical SIM messages by iOS.
Does this work with phone numbers from different countries? Yes. Fwrdly forwards any SMS received on your iPhone, regardless of the originating country or carrier.
What about calls?
Fwrdly handles SMS only. For call forwarding between SIMs, use your carrier’s call forwarding feature (usually a USSD code like *21*number#).
