Unfortunately, the provided search results do not contain any information about creating a vector wallpaper with a communication aesthetic. However, I can suggest using the @expo/vector-icons package to create icons for your wallpaper.

You can use the following code snippet as a starting point:

import React from 'react';
import { View, Image } from 'react-native';
import { MaterialIcons } from '@expo/vector-icons';

const Wallpaper = () => {
  return (
    <View>
      <Image source={{ uri: 'https://example.com/communication-icon.png' }} style={{ width: 100, height: 100 }} />
      <MaterialIcons name="chat" size={50} color="#fff" />
    </View>
  );
};

export default Wallpaper;

This code uses the @expo/vector-icons package to display a Material Icons chat icon on top of a background image. You can customize the appearance and layout to fit your desired aesthetic.

If you need more advanced features, such as dynamic wallpaper generation or integration with other Expo components, I recommend exploring the Expo documentation and community resources for further guidance.