Here's my walk-through base on @benoit-martins (linphone github) suggestion and it works very well. Thank you!

Walkthrough: Setting Up Linphone SDK for iOS with CocoaPods

Prerequisites

Ensure you have the following installed on your system:

• Ninja Build System: Install it with brew install ninja.
• Meson Build System: Install it with brew install meson.
• Xcode Command Line Tools: Install with xcode-select --install.
• Python 3: Verify installation with python3 --version.

Step-by-Step Guide

1. Clone and Prepare the SDK Repository

1. Clone the SDK repository to your local machine:

   cd /Users/<YOUR USERNAME>
   git clone https://gitlab.linphone.org/BC/public/linphone-sdk.git
   cd linphone-sdk
   

2. Update the repository and its submodules:

   git pull
   git submodule update --init --recursive
   

2. Set Up Python Environment

1. Upgrade pip:

   python3 -m pip install --upgrade pip
   

2. Create and activate a virtual environment:

   python3 -m venv venv
   source venv/bin/activate
   

3. Install the required Python modules:

   pip install pystache six
   

4. Confirm the modules are installed:

   pip list
   

3. Build the iOS SDK

1. Run the cmake command (inside the activated virtual environment):

   cmake --preset=ios-sdk -G Ninja -B IOS_64_RELEASE \
     -DPYTHON_EXECUTABLE=$(which python3) \
     -DENABLE_PQCRYPTO=YES \
     -DLINPHONESDK_IOS_ARCHS=arm64 \
     -DENABLE_NON_FREE_FEATURES=YES \
     -DENABLE_GPL_THIRD_PARTIES=YES \
     -DENABLE_G729=YES \
     -DCMAKE_CONFIGURATION_TYPES=ReleaseWithDebInfo
   

2. Build the SDK:

   cmake --build IOS_64_RELEASE --config RelWithDebInfo -j5
   

4. Verify the Build Output

Check if the build output exists at the following path:

/Users/<YOUR USERNAME>/linphone-sdk/IOS_64_RELEASE

The folder should contain the linphone-sdk.podspec file.

5. Configure Your CocoaPods Podfile

1. Edit your Podfile to include the local build of Linphone SDK:

   platform :ios, '15.6'
   source "https://github.com/CocoaPods/Specs.git"
   
   def basic_pods
     pod 'linphone-sdk', :path => '/Users/<YOUR USERNAME>/linphone-sdk/IOS_64_RELEASE'
   end
   
   target 'MyAppLinphone' do
     use_frameworks!
   
     pod 'SQLite.swift', '~> 0.14.0'
     pod 'ModalPresenter'
     pod "Firebase"
     pod 'Firebase/Core'
     pod 'Firebase/Messaging'
   
     basic_pods
   end
   

6. Install CocoaPods Dependencies

Navigate to your project directory where the Podfile is located and run:

pod upgrade
pod install

7. Test Your Application

Run your app to verify the integration works successfully.