diff --git a/reach/client/operations.go b/reach/client/operations.go
index c98b675..d642e67 100644
--- a/reach/client/operations.go
+++ b/reach/client/operations.go
@@ -222,4 +222,19 @@ func (c *Client) GetModemConfiguration(ctx context.Context) (any, error) {
 	return config, nil
 }
 
+// GetModemConfiguration implements protocol.Operations.
+func (c *Client) GetModemAuthentication(ctx context.Context) (any, error) {
+	_, ops, err := c.getProtocol(ctx)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	config, err := ops.GetModemAuthentication(ctx)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return config, nil
+}
+
 var _ protocol.Operations = &Client{}
diff --git a/reach/client/protocol/modem.go b/reach/client/protocol/modem.go
index a58ca5d..93cb60a 100644
--- a/reach/client/protocol/modem.go
+++ b/reach/client/protocol/modem.go
@@ -5,6 +5,7 @@ type SetModemOptions struct {
 	Type     *string
 	Username *string
 	Password *string
+	Pin      *string
 }
 
 type SetModemOptionsFunc func(opts *SetModemOptions)
@@ -34,8 +35,15 @@ func WithUsername(value string) SetModemOptionsFunc {
 		opts.Username = &value
 	}
 }
+
 func WithPassword(value string) SetModemOptionsFunc {
 	return func(opts *SetModemOptions) {
 		opts.Password = &value
 	}
 }
+
+func WithPin(value string) SetModemOptionsFunc {
+	return func(opts *SetModemOptions) {
+		opts.Pin = &value
+	}
+}
diff --git a/reach/client/protocol/operations.go b/reach/client/protocol/operations.go
index 8c9fe1c..551a3f9 100644
--- a/reach/client/protocol/operations.go
+++ b/reach/client/protocol/operations.go
@@ -64,4 +64,7 @@ type Operations interface {
 
 	//GetModemConfiguration  mobile data config
 	GetModemConfiguration(ctx context.Context) (any, error)
+
+	//GetModemAuthentication  mobile data config
+	GetModemAuthentication(ctx context.Context) (any, error)
 }
diff --git a/reach/client/protocol/v1/operations.go b/reach/client/protocol/v1/operations.go
index 1db989a..b0792e8 100644
--- a/reach/client/protocol/v1/operations.go
+++ b/reach/client/protocol/v1/operations.go
@@ -400,4 +400,9 @@ func (o *Operations) GetModemConfiguration(ctx context.Context) (any, error) {
 	return nil, protocol.ErrUnimplemented
 }
 
+// Deprecated : is no longer maintained for modules in V1
+func (o *Operations) GetModemAuthentication(ctx context.Context) (any, error) {
+	return nil, protocol.ErrUnimplemented
+}
+
 var _ protocol.Operations = &Operations{}
diff --git a/reach/client/protocol/v2/internal.go b/reach/client/protocol/v2/internal.go
index 083b404..0d9c365 100644
--- a/reach/client/protocol/v2/internal.go
+++ b/reach/client/protocol/v2/internal.go
@@ -174,7 +174,7 @@ func (o *Operations) PostModem(ctx context.Context, config *model.ModemAuthentic
 	return &updated, nil
 }
 
-func (o *Operations) GetModem(ctx context.Context) (*model.ModemConfiguration, error) {
+func (o *Operations) GetModemInfo(ctx context.Context) (*model.ModemConfiguration, error) {
 	config := &model.ModemConfiguration{}
 
 	if err := o.GetJSON("/modem/1/info", config); err != nil {
@@ -183,3 +183,13 @@ func (o *Operations) GetModem(ctx context.Context) (*model.ModemConfiguration, e
 
 	return config, nil
 }
+
+func (o *Operations) GetModemSettings(ctx context.Context) (*model.ModemAuthentication, error) {
+	config := &model.ModemAuthentication{}
+
+	if err := o.GetJSON("/modem/1/settings", config); err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return config, nil
+}
diff --git a/reach/client/protocol/v2/model/modem.go b/reach/client/protocol/v2/model/modem.go
index 805e727..f529fd2 100644
--- a/reach/client/protocol/v2/model/modem.go
+++ b/reach/client/protocol/v2/model/modem.go
@@ -3,12 +3,13 @@ package model
 // type : null, pap_chap, pap, chap
 // if type selected, username and password are mandatory
 type ModemAuthentication struct {
-	Authentication struct {
-		Apn      string `json:"apn"`
+	Authentication *struct {
+		Apn      string `json:"apn,omitempty"`
 		Type     string `json:"type,omitempty"`
 		Username string `json:"username,omitempty"`
 		Password string `json:"password,omitempty"`
-	} `json:"authentication"`
+	} `json:"authentication,omitempty"`
+	Pin string `json:"pin,omitempty"`
 }
 
 type ModemConfiguration struct {
diff --git a/reach/client/protocol/v2/operations.go b/reach/client/protocol/v2/operations.go
index 3522bba..18c2790 100644
--- a/reach/client/protocol/v2/operations.go
+++ b/reach/client/protocol/v2/operations.go
@@ -366,20 +366,29 @@ func (o *Operations) SetBaseCorrections(ctx context.Context, funcs ...protocol.S
 func (o *Operations) SetModem(ctx context.Context, funcs ...protocol.SetModemOptionsFunc) error {
 	opts := protocol.NewSetModemOptions(funcs...)
 	modem := &model.ModemAuthentication{}
-	if opts.Apn != nil {
-		modem.Authentication.Apn = *opts.Apn
+	if opts.Pin != nil {
+		modem.Pin = *opts.Pin
 	}
 
-	if opts.Type != nil {
-		modem.Authentication.Type = *opts.Type
-	}
-
-	if opts.Password != nil {
-		modem.Authentication.Password = *opts.Password
-	}
-
-	if opts.Username != nil {
-		modem.Authentication.Username = *opts.Username
+	if opts.Apn != nil || opts.Type != nil || opts.Username != nil || opts.Password != nil {
+		modem.Authentication = &struct {
+			Apn      string `json:"apn,omitempty"`
+			Type     string `json:"type,omitempty"`
+			Username string `json:"username,omitempty"`
+			Password string `json:"password,omitempty"`
+		}{}
+		if opts.Apn != nil {
+			modem.Authentication.Apn = *opts.Apn
+		}
+		if opts.Type != nil {
+			modem.Authentication.Type = *opts.Type
+		}
+		if opts.Username != nil {
+			modem.Authentication.Username = *opts.Username
+		}
+		if opts.Password != nil {
+			modem.Authentication.Password = *opts.Password
+		}
 	}
 
 	if _, err := o.PostModem(ctx, modem); err != nil {
@@ -388,9 +397,20 @@ func (o *Operations) SetModem(ctx context.Context, funcs ...protocol.SetModemOpt
 	return nil
 }
 
-// SetModem implements protocol.Operations.
+// GetModem implements protocol.Operations.
 func (o *Operations) GetModemConfiguration(ctx context.Context) (any, error) {
-	config, err := o.GetModem(ctx)
+	config, err := o.GetModemInfo(ctx)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return config, nil
+
+}
+
+// GetModemSettings implements protocol.Operations.
+func (o *Operations) GetModemAuthentication(ctx context.Context) (any, error) {
+	config, err := o.GetModemSettings(ctx)
 	if err != nil {
 		return nil, errors.WithStack(err)
 	}