# Mobile Parameters

## Source side options

All these options are for push links and guest invite links in a room ([`&push`](/advanced-settings/setup-parameters/push.md) / [`&room`](/advanced-settings/setup-parameters/room.md))

<table><thead><tr><th width="228">Parameter</th><th>Explanation</th></tr></thead><tbody><tr><td><a href="/pages/n9hVpQqv5dmmGERbjevl"><code>&#x26;facing</code></a></td><td>Lets you specify either the front or rear facing camera as the default camera</td></tr><tr><td><a href="/pages/yMDZE7PUcZjqAT6UYESz"><code>&#x26;forcelandscape</code></a></td><td>Forces the video output to landscape mode, regardless of how the phone is rotated</td></tr><tr><td><a href="/pages/xL8fe4mtDRJRwIaFikfT"><code>&#x26;forceportrait</code></a></td><td>Forces the video output to portrait mode, regardless of how the phone is rotated</td></tr><tr><td><a href="/pages/-MZXc77Nu07lj_22d16f"><code>&#x26;forceios</code></a></td><td>Forces iOS devices to publish video to this room</td></tr><tr><td><a href="/pages/IUMTVIUnShugH9532n9S"><code>&#x26;notios</code></a></td><td>Just tells the system that its not an iOS device, or iPad, even if it is</td></tr><tr><td><a href="/pages/AHnvHnhNzNPNmgH1Qm1T"><code>&#x26;flagship</code></a></td><td>Will optimize the mobile experience for more capable smartphones</td></tr><tr><td><a href="/pages/QCZFiND9wR2aMihmKpVH"><code>&#x26;mobile</code></a></td><td>Optimizes a guest/push link for a mobile device to help reduce CPU issues</td></tr><tr><td><a href="/pages/4q8OvUgNsobKPzdRHI82"><code>&#x26;notmobile</code></a></td><td>Optimizes a guest/push link for a mobile device to improve video quality</td></tr><tr><td><a href="/pages/YumO7ut3SiOpZ8mimkGh"><code>&#x26;app</code></a></td><td>Loads the site into an "app mode" and allows you to load a new URL via the website itself</td></tr></tbody></table>


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