diff --git a/core/ContextBase.cpp b/core/ContextBase.cpp
index e7ee8bf1..5695544a 100644
--- a/core/ContextBase.cpp
+++ b/core/ContextBase.cpp
@@ -71,6 +71,7 @@ const loc_param_s_type ContextBase::mGps_conf_table[] =
   {"EXTERNAL_DR_ENABLED",            &mGps_conf.EXTERNAL_DR_ENABLED,                  NULL, 'n'},
   {"SUPL_HOST",                      &mGps_conf.SUPL_HOST,                      NULL, 's'},
   {"SUPL_PORT",                      &mGps_conf.SUPL_PORT,                      NULL, 'n'},
+  {"MODEM_TYPE",                     &mGps_conf.MODEM_TYPE,                     NULL, 'n' },
 };
 
 const loc_param_s_type ContextBase::mSap_conf_table[] =
@@ -122,6 +123,8 @@ void ContextBase::readConfig()
         mGps_conf.LPPE_CP_TECHNOLOGY = 0;
         /* By default no LPPe UP technology is enabled*/
         mGps_conf.LPPE_UP_TECHNOLOGY = 0;
+        /* By default we use unknown modem type*/
+        mGps_conf.MODEM_TYPE = 2;
 
         /*Defaults for sap.conf*/
         mSap_conf.GYRO_BIAS_RANDOM_WALK = 0;
diff --git a/core/ContextBase.h b/core/ContextBase.h
index e7edb296..fca381f3 100644
--- a/core/ContextBase.h
+++ b/core/ContextBase.h
@@ -67,6 +67,7 @@ typedef struct loc_gps_cfg_s
     uint32_t       EXTERNAL_DR_ENABLED;
     char           SUPL_HOST[MAX_SUPL_SERVER_URL_LENGTH];
     uint32_t       SUPL_PORT;
+    uint32_t       MODEM_TYPE;
 } loc_gps_cfg_s_type;
 
 /* NOTE: the implementaiton of the parser casts number
diff --git a/etc/gps.conf b/etc/gps.conf
index 7653408d..51c0b965 100644
--- a/etc/gps.conf
+++ b/etc/gps.conf
@@ -229,3 +229,13 @@ PROPAGATION_TIME_UNCERTAINTY = 1
 # INTERNET_IP_TYPE = 4
 # SUPL_APN = abc.xyz
 # SUPL_IP_TYPE = 4
+
+#####################################
+# Modem type
+#####################################
+# This setting configures modem type
+# (external=0 or internal=1)
+# comment out the next line to vote
+# for the first modem in the list
+MODEM_TYPE = 1
+