User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/534.51.22 (KHTML, like Gecko) Version/5.1.1 Safari/534.51.22 Steps to reproduce: Trying to activate/deactivate the speaker in Samsung Galaxy SII Actual results: Setting the attribute navigator.mozTelephony.speakerEnabled either to true or false we get the following errors in the log: E/GeckoConsole( 6203): [JavaScript Error: "uncaught exception: [Exception... "'[JavaScript Error: "gAudioManager.setForceUse is not a function" {file: "jar:file:///system/b2g/omni.ja!/components/RadioInterfaceLayer.js" line: 419}]' when calling method: [nsIRadioInterfaceLayer::speakerEnabled]" nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)" location: "JS frame :: http://localhost:6666/Telephony/script/dialer.js :: <TOP_LEVEL> :: line 579" data: yes]"] E/GeckoConsole( 6203): [JavaScript Error: "uncaught exception: [Exception... "'[JavaScript Error: "gAudioManager.setForceUse is not a function" {file: "jar:file:///system/b2g/omni.ja!/components/RadioInterfaceLayer.js" line: 419}]' when calling method: [nsIRadioInterfaceLayer::speakerEnabled]" nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)" location: "JS frame :: http://localhost:6666/Telephony/script/dialer.js :: <TOP_LEVEL> :: line 579" data: yes]"] E/GeckoConsole( 6203): [JavaScript Error: "uncaught exception: [Exception... "'[JavaScript Error: "gAudioManager.setForceUse is not a function" {file: "jar:file:///system/b2g/omni.ja!/components/RadioInterfaceLayer.js" line: 419}]' when calling method: [nsIRadioInterfaceLayer::speakerEnabled]" nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)" location: "JS frame :: http://localhost:6666/Telephony/script/dialer.js :: <TOP_LEVEL> :: line 579" data: yes]"]