Quick Answer

Insert the SIM whose number is registered in your MyOperator profile into SIM Slot 1, then set that SIM as the default line for both Calls and Mobile Data in Android settings to keep the Dialer App connected and avoid dropped or missed patch calls.

Why the Primary SIM Setting Matters

The Dialer App authenticates against the exact mobile number saved in Manage Users. If another SIM is selected for voice or data, the app may lose registration, sync failures can occur, and incoming patch calls can be missed. Assigning the correct SIM as primary eliminates these problems.

Recommended SIM Slot and Data Line

For the most stable radio signal and network hand-overs, place the registered MyOperator SIM in SIM Slot 1. While using the Dialer App, keep this same SIM selected as the default line for Mobile Data so call logs and statuses sync in real time.

Step-by-Step Device Configuration

1. Confirm that the physical SIM card matching your registered MyOperator login number is inserted, preferably in SIM Slot 1.
2. Open Settings and tap SIM Card & Mobile Network.
3. Select “Default for Calls” and choose the SIM that carries your MyOperator registered number.
4. Select “Mobile Data” and choose this same SIM whenever you are handling calls through the Dialer App.
5. If you use caller-ID apps such as Truecaller, review their block lists and ensure MyOperator patch numbers are not black-listed.

Impact on Your Personal Number

• Setting your business SIM as default for the Dialer App never hides or restricts personal calls on your secondary SIM.
• SIM slot placement is a handset-only setting and is never visible to your callers.

Avoiding Dual-SIM Forwarding Loops

If you forward marketing calls with *21*, never place both the public forwarding SIM and the agent’s receiving SIM in the same handset. Local call looping will cause repeated ringing and missed connections.

Telecom operators also flag personal SIMs that generate heavy automated forwarding. For high-volume traffic, use a corporate-registered SIM line or procure dedicated virtual DID numbers.

Troubleshooting and When to Contact Support

If outgoing calls still fail or patch calls drop after completing the configuration:

• Email support@myoperator.com or call 08129-81029 or 092129 92129.
• Provide your Business Account Number (BAN), registered agent mobile number, and device model with Android/OS version.

What the Support Team Will Do

1. Account & User Audit: Validate the BAN and Service Number, check Manage Users to confirm the agent’s registered phone number and active Pro License status.
2. Dual-SIM Diagnostic Walkthrough: Guide you through moving the SIM to Slot 1 and setting it as default for voice and data.
3. Call Loop & Forwarding Checks: Verify that no active SIM forwarding loop exists between the two SIM slots.
4. App Re-login & Permission Reset: Ask you to log out, clear the Dialer App’s cache/data, re-grant Phone and Contacts permissions, and log back in.

Account Manager Assistance

If a personal SIM is throttled or blocked by the carrier because of high-volume forwarding, the Support agent will tag your Account Manager (AM). The AM will help you migrate to an enterprise plan or obtain corporate virtual (DID) numbers.

Escalation to Internal Tech Support

When correct SIM placement and permissions do not resolve drops or registration failures, Support opens a Child Ticket for Internal Tech Support in Zoho Desk or emails tech.support@myoperator.co.

The ticket must include:

• Business Account Number
• Service Number
• Agent phone number
• Handset make/model and OS version
• Diagnostic steps already completed
• 4–5 recent Call UIDs of failed test calls in plain text

Keywords

dual-SIM, primary SIM, Slot 1, MyOperator Dialer App, default calls, mobile data line, call forwarding loop, *21*, BAN, patch call drops, Pro License, Manage Users, Android settings, support contact