Field Notice: FN - 72193 - Cisco Remote Expert Mobile (REM) - Removal of SDP Dialect Plan B Can Break Google Chrome/Chromium-Based Browser - Workaround Provided

Available Languages

Updated:June 10, 2021

Document ID:FN72193

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision	Publish Date	Comments
1.0	03-Jun-21	Initial Release

Products Affected

Affected OS Type	Affected Software Product	Affected Release	Affected Release Number	Comments
NON-IOS	Remote Expert Mobile Software	11	11.5(1), 11.5(1)_ES1, 11.5(1)_ES10, 11.5(1)_ES11, 11.5(1)_ES2, 11.5(1)_ES3, 11.5(1)_ES4, 11.5(1)_ES5, 11.5(1)_ES6, 11.5(1)_ES7, 11.5(1)_ES8, 11.5(1)_ES9, 11.5(1)_SU1, 11.6(1), 11.6(1)_ES1, 11.6(1)_ES10, 11.6(1)_ES11, 11.6(1)_ES12, 11.6(1)_ES13, 11.6(1)_ES14, 11.6(1)_ES15, 11.6(1)_ES16, 11.6(1)_ES17, 11.6(1)_ES18, 11.6(1)_ES2, 11.6(1)_ES3, 11.6(1)_ES4, 11.6(1)_ES5, 11.6(1)_ES6, 11.6(1)_ES7, 11.6(1)_ES8, 11.6(1)_ES9

Defect Information

Defect ID	Headline
CSCvy27996	REM - Deprecation / Removal of SDP Dialect Plan B can break Chrome / Chromium based browser

Problem Description

Cisco Remote Expert Mobile (REM)/Remote Expert Cobrowse will break in Google Chrome or any other Chromium-based web browser when the legacy Session Description Protocol (SDP) dialect called Plan B is deprecated in August 2021.

Background

As per notes from the conversation in Intent to Deprecate: WebRTC's Plan B SDP semantics, the legacy SDP dialect called Plan B is scheduled to be deprecated in August 2021. This will break Cisco REM/Remote Expert Cobrowse in Google Chrome/Chromium-based web browsers.

Refer to the Enterprise Compatibility Matrix or Express Compatibility Matrix to find a list of supported web browsers for your Contact Center Solution and REM/Remote Expert Cobrowse version. Google Chrome/Chromium-based browsers will be impacted as discussed in this field notice.

Problem Symptom

Cisco REM/Remote Expert Cobrowse customer calls will fail at some point in the call flow when the caller uses Google Chrome or any other Chromium-based web browser.

Workaround/Solution

Since REM/Remote Expert Cobrowse is out of engineering support, Cisco has no plan to address this expected change in Google Chrome/Chromium-based web browsers. See the End-of-Sale and End-of-Life Announcement for the Cisco Remote Expert Mobile/Remote Expert Cobrowse for more information. REM/Remote Expert Cobrowse customers are requested to use an alternate web browser or video solution.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

Receive Email Notification For New Field Notices

My Notifications—Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.