iPhone 17 microphone: Works for Siri, not for calls

“Thanks for the suggestions.: One important detail I forgot to mention: the issue started right after I activated my eSIM.[…]”

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Give your Carrier a Call. They manage the configuration of the eSIM card. Tell them what is going on.

“iPhone 17 microphone: Works for Siri, not for calls: Hi everyone, I’m having a very strange microphone issue on my iPhone 17 and I’m trying to figure out if anyone else has experienced this.

The weird part is:[…]”

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Call Microphone Issues:

It might be a hardware error, or a misconfiguration issue. So, a few things to go by and try…

Provide More:

So, when did this all begin? Was it after an update? Was it after software install?

Back Up, then Set this Up Anew:

What settings did you reset? Resetting your iPhone and Erase All Content might do the job; but, just know that whatever you do not back up would be unrecoverable. So, create a backup of your data prior to the reset. That way, you can have something to recover it from.

1. Go to: Settings app
2. Tap: General
3. Tap: Transfer or Reset iPhone
4. Tap: Reset
5. Tap: Erase All Content and Settings

Troubleshooting iPhone Call Audio:

A. Output and Input:

• Volume Output: If you Can't Hear a Person on a Call or Voicemail or if the Sound isn't Clear on your iPhone
• Volume Input: if your Microphone isn’t Working or People Can’t Hear you While you’re on a Call

B. Try a Force Restart:

If stuck in a backup, perform a Force Restart. Nothing would be lost, in fact, the transfer would pop right back up.

C. Clear the Caches:

System Data consists of caches, all of which gather over time. They are create as apps learn from your use of them so that they open quicker and testing faster. So, clear the System Data, as obstruction in the Phone app may be occurring here. Use my User Tip: How to Clear "System Data" in your iPhone's Storage: - User Tip

Have you tried Cellular Voice Calls?

What Call are you referring to is not clear from your post? On an iPhone, you can make and receive various types of calls. Here are the different types:

1. These are standard voice calls made over the cellular network. They utilize your carrier's voice network to connect you with other phone numbers. Allow phone calls on your iPad, iPod touch, and Mac
2. FaceTime Audio allows you to make voice calls over Wi-Fi or cellular data using your internet connection. It provides higher audio quality compared to traditional cellular calls.
3. FaceTime Video enables you to have video calls with other FaceTime users. It uses the front or rear camera on your iPhone to transmit live video during the call. Use FaceTime with your iPhone or iPad - Apple Support (IN)
4. VoIP (Voice over Internet Protocol) calls use internet connectivity to make phone calls. Apps like Skype, WhatsApp, Viber, and Google Hangouts utilize this technology, allowing you to make voice and video calls over the Internet.
5. Some carriers support Wi-Fi calling, which allows you to make and receive calls over a Wi-Fi network instead of relying solely on cellular coverage. This can be useful in areas with weak cellular reception. Make a call with Wi-Fi Calling - Apple Support (IN)
6. The App Store offers numerous calling apps that utilize different technologies. These apps can provide additional features and options for making calls, such as international calling, call recording, and more.

It's important to note that the availability of certain call types may depend on your iPhone model, iOS version, and carrier.