diff --git a/ps-config/gprs/gprs.conf b/ps-config/gprs/gprs.conf
index 4cbb0ad23450605ec1eea846d508faaf865f2303..45388dde2fe2ce6f21abccb418b55227a28d6bab 100644
--- a/ps-config/gprs/gprs.conf
+++ b/ps-config/gprs/gprs.conf
@@ -1,6 +1,6 @@
 [main]
-startdb=30;
-uttdb=35;
+startdb=40;
+uttdb=45;
 silence=400;
 timeout=8;
 openDeviceDirectly=yes;