OnQ Blog

Seamless voice and video calling with Qualcomm Gobi

Dec 1, 2014

Qualcomm products mentioned within this post are offered by Qualcomm Technologies, Inc. and/or its subsidiaries.

During our recent Connectivity Workshop we presented a demonstration of Qualcomm® Gobi™ VoLTE to Wi-Fi/3G service continuity with a mid-call handoff from LTE to 3G, as well as a similar handoff from LTE to Wi-Fi during a video call.

This kind of device flexibility to adapt to changing network conditions is very important as multimode LTE networks continue to grow. The demonstration was performed with two prototype smartphones powered by Qualcomm® Snapdragon™ 800 processors with integrated Gobi modems. The phones were mirrored onto displays so that everybody could see the demo clearly. The SRVCC (single radio voice call continuity) based VoLTE to 3G handoff was practically imperceptible when the engineer made the switch as HD voice smoothly transitioned from LTE to 3G.

The delay was just a bit more noticeable on the video call handover to Wi-Fi, but it caught up quickly. Having this sort of adaptable multimode technology in every smartphone will help to evenly distribute network traffic so that everything runs more smoothly. This was just one of the many modem technologies that was demonstrated including WiGig and Carrier Aggregation. Seeing them work up close was a very exciting peek at what’s on the horizon for connectivity.

Opinions expressed in the content posted here are the personal opinions of the original authors, and do not necessarily reflect those of Qualcomm Incorporated or its subsidiaries ("Qualcomm"). Qualcomm products mentioned within this post are offered by Qualcomm Technologies, Inc. and/or its subsidiaries. The content is provided for informational purposes only and is not meant to be an endorsement or representation by Qualcomm or any other party. This site may also provide links or references to non-Qualcomm sites and resources. Qualcomm makes no representations, warranties, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site.

Kanu Chadha

Senior Manager, Technical Marketing

©2021 Qualcomm Technologies, Inc. and/or its affiliated companies.

References to "Qualcomm" may mean Qualcomm Incorporated, or subsidiaries or business units within the Qualcomm corporate structure, as applicable.

Qualcomm Incorporated includes Qualcomm's licensing business, QTL, and the vast majority of its patent portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm's engineering, research and development functions, and substantially all of its products and services businesses. Qualcomm products referenced on this page are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

Materials that are as of a specific date, including but not limited to press releases, presentations, blog posts and webcasts, may have been superseded by subsequent events or disclosures.

Nothing in these materials is an offer to sell any of the components or devices referenced herein.