Packet domain event unsolicited result codes +CGEV

Unsolicited packet domain notifications are sent when the device is detached from the network or when a packet data connection is activated, deactivated, or modified.

For reference, see 3GPP 27.007 Ch. 10.1.19.

These notifications are subscribed using the +CGEREP command.

Syntax descriptions are listed below:

Network detach:

+CGEV: NW DETACH

Mobile Equipment (ME) detach:

+CGEV: ME DETACH

The ME has activated a default bearer:

+CGEV: ME PDN ACT <cid>[,<reason>]

The network has activated a dedicated bearer:

+CGEV: NW ACT <p_cid>, <cid>, <event_type>

The network has deactivated a default bearer:

+CGEV: NW PDN DEACT <cid>

The UE has deactivated a default bearer:

+CGEV: ME PDN DEACT <cid>

The network has deactivated a dedicated bearer:

+CGEV: NW DEACT <p_cid>, <cid>, <event_type>

The UE has deactivated a dedicated bearer:

+CGEV: ME DEACT <p_cid>, <cid>, <event_type>

The network has modified a bearer:

+CGEV: NW MODIFY <cid>, <change_reason>, <event_type>

The UE has modified a bearer:

+CGEV: ME MODIFY <cid>, <change_reason>, <event_type>

IPv6 Link is up for the default bearer:

+CGEV: IPV6 <cid>
<cid>
0–11
<reason>
0 – Only IPv4 allowed
1 – Only IPv6 allowed
2 – Only single access bearers allowed
3 – Only single access bearers allowed and context activation for a second address type bearer was not successful.
<cid_other>
1–11: Indicates the context identifier allocated for an MT-initiated context of a second address type. This parameter is included only if <reason> parameter indicates that only single address bearers are allowed.
<p_cid>
0–11: Context identifier for an associated default context.
<event_type>
0 – Informational event
1 – Information request. Acknowledgement is required and it can be either accept or reject.

The example notification shows that an initial Packet Data Network (PDN) connection is activated:

+CGEV: ME PDN ACT 0

The example notification shows that the device is detached from network:

+CGEV: ME DETACH