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| Connection Cellular interfaceConnection Cellular interface — client-side wrappers for the Cellular interface | 
An interface for connections to cellular telephony (GSM, CDMA etc.), which provides properties and signals that aren't applicable to other protocols.
TpProxySignalConnection * tp_cli_connection_interface_cellular_connect_to_imsi_changed (TpConnection *proxy,tp_cli_connection_interface_cellular_signal_callback_imsi_changed callback,gpointer user_data,GDestroyNotify destroy,GObject *weak_object,GError **error);
Connect a handler to the signal IMSIChanged.
Emitted when the IMSI for the connection changes. This sort of thing is rare, but could happen on cellular phones that allow hot-swapping of SIM cards. In the case of SIM swapping, this signal would be emitted twice; the first time while the SIM is being ejected (with an empty string), and the second time after a new SIM has been inserted (assuming that the IMSI can be determined from the new SIM).
| proxy | A TpConnection or subclass | |
| callback | Callback to be called when the signal is received | |
| user_data | User-supplied data for the callback | |
| destroy | Destructor for the user-supplied data, which
will be called when this signal is disconnected, or
before this function returns  | |
| weak_object | A GObject which will be weakly referenced; if it is destroyed, this callback will automatically be disconnected | |
| error | If not  | 
 a TpProxySignalConnection containing all of the
above, which can be used to disconnect the signal; or
NULL if the proxy does not have the desired interface
or has become invalid.
void (*tp_cli_connection_interface_cellular_signal_callback_imsi_changed) (TpConnection *proxy,const gchar *arg_IMSI,gpointer user_data,GObject *weak_object);
Represents the signature of a callback for the signal IMSIChanged.
| proxy | The proxy on which  | |
| arg_IMSI | The new IMSI value. This may be an empty string in the case where the IMSI is being reset or removed. | |
| user_data | User-supplied data | |
| weak_object | User-supplied weakly referenced object |