diff --git a/b2g/config/dolphin/sources.xml b/b2g/config/dolphin/sources.xml
index f51412511cf5..ead80f99be5a 100644
--- a/b2g/config/dolphin/sources.xml
+++ b/b2g/config/dolphin/sources.xml
@@ -15,7 +15,7 @@
   <project name="platform_build" path="build" remote="b2g" revision="3a2947df41a480de1457a6dcdbf46ad0af70d8e0">
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
@@ -23,7 +23,7 @@
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" revision="95bb5b66b3ec5769c3de8d3f25d681787418e7d2"/>
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" revision="ebdad82e61c16772f6cd47e9f11936bf6ebe9aa0"/>
diff --git a/b2g/config/emulator-ics/sources.xml b/b2g/config/emulator-ics/sources.xml
index 330a8bd2de80..959402e94c01 100644
--- a/b2g/config/emulator-ics/sources.xml
+++ b/b2g/config/emulator-ics/sources.xml
@@ -19,13 +19,13 @@
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="platform_hardware_ril" path="hardware/ril" remote="b2g" revision="cd88d860656c31c7da7bb310d6a160d0011b0961"/>
   <project name="platform_external_qemu" path="external/qemu" remote="b2g" revision="c058843242068d0df7c107e09da31b53d2e08fa6"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project name="platform/abi/cpp" path="abi/cpp" revision="dd924f92906085b831bf1cbbc7484d3c043d613c"/>
   <project name="platform/bionic" path="bionic" revision="c72b8f6359de7ed17c11ddc9dfdde3f615d188a9"/>
diff --git a/b2g/config/emulator-jb/sources.xml b/b2g/config/emulator-jb/sources.xml
index eec1cfb43c46..6176daa755fb 100644
--- a/b2g/config/emulator-jb/sources.xml
+++ b/b2g/config/emulator-jb/sources.xml
@@ -17,10 +17,10 @@
   </project>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
   <!-- Stock Android things -->
diff --git a/b2g/config/emulator-kk/sources.xml b/b2g/config/emulator-kk/sources.xml
index 6e56eaa74da9..7b0a739a427a 100644
--- a/b2g/config/emulator-kk/sources.xml
+++ b/b2g/config/emulator-kk/sources.xml
@@ -15,7 +15,7 @@
   <project name="platform_build" path="build" remote="b2g" revision="3a2947df41a480de1457a6dcdbf46ad0af70d8e0">
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
@@ -23,7 +23,7 @@
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" revision="f92a936f2aa97526d4593386754bdbf02db07a12"/>
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" revision="6e47ff2790f5656b5b074407829ceecf3e6188c4"/>
diff --git a/b2g/config/emulator/sources.xml b/b2g/config/emulator/sources.xml
index 330a8bd2de80..959402e94c01 100644
--- a/b2g/config/emulator/sources.xml
+++ b/b2g/config/emulator/sources.xml
@@ -19,13 +19,13 @@
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="platform_hardware_ril" path="hardware/ril" remote="b2g" revision="cd88d860656c31c7da7bb310d6a160d0011b0961"/>
   <project name="platform_external_qemu" path="external/qemu" remote="b2g" revision="c058843242068d0df7c107e09da31b53d2e08fa6"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project name="platform/abi/cpp" path="abi/cpp" revision="dd924f92906085b831bf1cbbc7484d3c043d613c"/>
   <project name="platform/bionic" path="bionic" revision="c72b8f6359de7ed17c11ddc9dfdde3f615d188a9"/>
diff --git a/b2g/config/flame-kk/sources.xml b/b2g/config/flame-kk/sources.xml
index 3231982373aa..591f5187a340 100644
--- a/b2g/config/flame-kk/sources.xml
+++ b/b2g/config/flame-kk/sources.xml
@@ -15,7 +15,7 @@
   <project name="platform_build" path="build" remote="b2g" revision="3a2947df41a480de1457a6dcdbf46ad0af70d8e0">
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
@@ -23,7 +23,7 @@
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6" revision="95bb5b66b3ec5769c3de8d3f25d681787418e7d2"/>
   <project groups="linux" name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6" revision="ebdad82e61c16772f6cd47e9f11936bf6ebe9aa0"/>
diff --git a/b2g/config/flame/sources.xml b/b2g/config/flame/sources.xml
index 647c8abc5c72..cbd93595bf5a 100644
--- a/b2g/config/flame/sources.xml
+++ b/b2g/config/flame/sources.xml
@@ -17,10 +17,10 @@
   </project>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
   <!-- Stock Android things -->
diff --git a/b2g/config/gaia.json b/b2g/config/gaia.json
index 34b1cb0ce7ac..0ad79bc6982d 100644
--- a/b2g/config/gaia.json
+++ b/b2g/config/gaia.json
@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "8cad8de0f7b98963537f267151275caed62d5d30", 
+    "revision": "3adc8626bd88ae4a8782d2f478656e8d52d805c2", 
     "repo_path": "/integration/gaia-central"
 }
diff --git a/b2g/config/hamachi/sources.xml b/b2g/config/hamachi/sources.xml
index f2efbb69437f..918405490f27 100644
--- a/b2g/config/hamachi/sources.xml
+++ b/b2g/config/hamachi/sources.xml
@@ -17,12 +17,12 @@
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <!-- Stock Android things -->
   <project name="platform/abi/cpp" path="abi/cpp" revision="6426040f1be4a844082c9769171ce7f5341a5528"/>
   <project name="platform/bionic" path="bionic" revision="d2eb6c7b6e1bc7643c17df2d9d9bcb1704d0b9ab"/>
diff --git a/b2g/config/helix/sources.xml b/b2g/config/helix/sources.xml
index 61a3beb2e5f3..a1df265f7e82 100644
--- a/b2g/config/helix/sources.xml
+++ b/b2g/config/helix/sources.xml
@@ -15,7 +15,7 @@
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
diff --git a/b2g/config/nexus-4/sources.xml b/b2g/config/nexus-4/sources.xml
index c66e794522b6..cbcca75551b8 100644
--- a/b2g/config/nexus-4/sources.xml
+++ b/b2g/config/nexus-4/sources.xml
@@ -17,10 +17,10 @@
   </project>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <project name="valgrind" path="external/valgrind" remote="b2g" revision="daa61633c32b9606f58799a3186395fd2bbb8d8c"/>
   <project name="vex" path="external/VEX" remote="b2g" revision="47f031c320888fe9f3e656602588565b52d43010"/>
   <!-- Stock Android things -->
diff --git a/b2g/config/wasabi/sources.xml b/b2g/config/wasabi/sources.xml
index f4638f7a8fd7..b2ae5b0849b5 100644
--- a/b2g/config/wasabi/sources.xml
+++ b/b2g/config/wasabi/sources.xml
@@ -17,12 +17,12 @@
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="0bc74ce502672cf0265b24cf3a25d117c3de5e71"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="2665e714beea5dc433862ca6bb8d2b47ffe2f2d1"/>
   <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="5883a99b6528ced9dafaed8d3ca2405fb285537e"/>
   <project name="rilproxy" path="rilproxy" remote="b2g" revision="827214fcf38d6569aeb5c6d6f31cb296d1f09272"/>
   <project name="librecovery" path="librecovery" remote="b2g" revision="891e5069c0ad330d8191bf8c7b879c814258c89f"/>
   <project name="moztt" path="external/moztt" remote="b2g" revision="562d357b72279a9e35d4af5aeecc8e1ffa2f44f1"/>
-  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="9f9bc14c28aed7b2571e641bfeeca81876ec48ec"/>
+  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="6ca2008ac50b163d31244ef9f036cb224f4f229b"/>
   <project name="gonk-patches" path="patches" remote="b2g" revision="223a2421006e8f5da33f516f6891c87cae86b0f6"/>
   <!-- Stock Android things -->
   <project name="platform/abi/cpp" path="abi/cpp" revision="6426040f1be4a844082c9769171ce7f5341a5528"/>
diff --git a/dom/system/gonk/ril_worker.js b/dom/system/gonk/ril_worker.js
index e0bd6bb922ce..1b5294f10b35 100644
--- a/dom/system/gonk/ril_worker.js
+++ b/dom/system/gonk/ril_worker.js
@@ -6748,7 +6748,14 @@ RilObject.prototype[UNSOLICITED_ON_USSD] = function UNSOLICITED_ON_USSD() {
     this.context.debug("On USSD. Type Code: " + typeCode + " Message: " + message);
   }
 
-  this._ussdSession = (typeCode != "0" && typeCode != "2");
+  let oldSession = this._ussdSession;
+
+  // Per ril.h the USSD session is assumed to persist if the type code is "1".
+  this._ussdSession = typeCode == "1";
+
+  if (!oldSession && !this._ussdSession && !message) {
+    return;
+  }
 
   this.sendChromeMessage({rilMessageType: "ussdreceived",
                           message: message,