diff --git a/src/config.rs b/src/config.rs
index 62f368f..85dc37a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -4,8 +4,14 @@ pub struct GprsAp<'a> {
     pub password: &'a str,
 }
 
-pub const A1_GPRS_AP: GprsAp = GprsAp {
+pub const A1: GprsAp = GprsAp {
     apn: "internet",
     username: "internet",
     password: "internet",
 };
+
+pub const MTS: GprsAp = GprsAp {
+    apn: "gprswap",
+    username: "mts",
+    password: "064",
+};
diff --git a/src/modem.rs b/src/modem.rs
index 6018de2..78d0cb9 100644
--- a/src/modem.rs
+++ b/src/modem.rs
@@ -197,15 +197,15 @@ impl<UART: serial::Uart> Modem<UART> {
         self.send_command(Command::gprs_bearer_status())
     }
 
-    pub fn gprs_attach_ap(&mut self, apn: &str, username: &str, password: &str)-> Result<()> {
+    pub fn gprs_attach_ap(&mut self, config: crate::config::GprsAp)-> Result<()> {
         println!("init gprs ...");
         let _ = self.send_command(Command::gprs_init())?;
 
-        println!("setting up gprs credentials for apn {}, {}:{})", apn, username, password);
+        println!("setting up gprs credentials for apn {}, {}:{})", config.apn, config.username, config.password);
 
-        let _ = self.send_command(Command::gprs_set_apn(apn))?;
-        let _ = self.send_command(Command::gprs_set_user(username))?;
-        let _ = self.send_command(Command::gprs_set_pwd(password))?;
+        let _ = self.send_command(Command::gprs_set_apn(config.apn))?;
+        let _ = self.send_command(Command::gprs_set_user(config.username))?;
+        let _ = self.send_command(Command::gprs_set_pwd(config.password))?;
 
         Ok(())
     }
@@ -223,6 +223,7 @@ impl<UART: serial::Uart> Modem<UART> {
 
     fn try_connect_gprs(&mut self) -> Result<()> {
         let mut retries = 0;
+        println!("TRYING TO CONNECT TO GPRS");
         loop {
             if self.is_gprs_attached()? {
                 let _ = self.gprs_connect()?;
@@ -551,11 +552,7 @@ where
 
     loop {
         if !mdm.is_gprs_attached()? {
-            let _ = mdm.gprs_attach_ap(
-                crate::config::A1_GPRS_AP.apn,
-                crate::config::A1_GPRS_AP.username,
-                crate::config::A1_GPRS_AP.password,
-            )?;
+            let _ = mdm.gprs_attach_ap(crate::config::A1)?;
         }
         if let Ok(()) = mdm.try_connect_gprs() {
             // When command AT+CIPQSEND=0, it is in normal sending mode. In this mode, after user