Sony Ericsson GM47, GM48 manual 231

13. NETWORK

If this feature is not disabled by the SIM, then whenever a connection is in place, which is or becomes deciphered, an indication is given via the unsolicited result code *ECPV:<ciphering>.

<switch>	Description
1	Ciphering indication is on. The unsolicited result code
	*ECPV is sent anytime the communication is unsecured
	and when it becomes secure again
0	Ciphering indication is off. Disable the ciphering
	indication, *ECPV is not sent

Unsolicited Result Codes:

*ECPV: <ciphering>. Sent only when <switch> is set to 0. Unsolicited Result Codes

*ECPV - Ciphering Indicator SYNTAX - Unsolicited Result code

Description	Response	When
Set command informs	*ECPV: <ciphering>	When AT*ECPI enables it,
the TE when a		the *ECPV:<ciphering> is
communication is		sent during a connection
unsecured due to the		whenever the
fact that the network		communication is not
is not enciphering the		enciphered. If a
communication		connection becomes
		secure after that, the
		*ECPV:<ciphering> is sent
		again to indicate that now
		the communication is
		enciphered

<ciphering>	Description
0	The connection is secured. The network enciphers the
	communication
1	The connection is unsecured. The network does not
	encipher the communication

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