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Tips for Using Your JPL Cell Phone Effectively

The OCIO has some tips on how JPLers can effectively use their cell phones, while easing cellular data limits.


As remote working has significantly increased, so has our cell phone usage. While JPL does have “unlimited” calling plans, the user minutes are actually combined into a pool for everyone to use. Normally, the pool is more than adequate, but under these new conditions, we are reaching our limit.

To ease cellular data minutes, we have put together the following tips.

  1. Discontinue forwarding your 5-digit extension to your cell phone and use Jabber for calls (see tip below). This can be turned off in Jabber or via the VoIP web page (
  2. Use Jabber for calls on your computer or cell phone. For instructions on installing and using the desktop and mobile device clients, see How to use Jabber on a Mobile Device (
  3. Do not use your cell phone when connecting to WebEx meetings. Instead use one of the following options:
    • Use Computer for Audio when connecting.
    • Have WebEx call your JPL VoIP number (as long as you have discontinued forwarding your 5-digit extension to your cell phone).

If neither of the above are a viable option, then use the instructions below to turn on ‘WiFi Calling’ before dialing into a meeting.

You may also use a headset or headphones with your computer for Jabber calls and Webex meetings. See instructions for Pairing and connecting a headset/headphones with a computer here.

Turn WiFi calling on. Your cell phone must be connected to your Home WiFi network for this option to work.


  • Open the Settings app.
  • Tap Phone > Wi-Fi Calling.
  • Switch the Wi-Fi Calling on This iPhone slider to On.
  • Accept warning about location data and what your carrier collects.
  • Tap Enable to turn on Wi-Fi Calling.


  • Go to Settings
  • Advanced Calling
  • Enable Wi-Fi Calling (HD Calling needs to be enabled as well)

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