Performs a packet service attach.

Note that this activity may not be needed for those devices that may have automatically attached to a PS network when powered on. If you are uncertain as to whether or not the device performs such an automatic attach, simply insert a PS Attach activity at the beginning of the script. This ensures that the device will attach and that logging of Layer 3 messages will be initiated.

After the measurements, at the end of the script, insert a "PS Detach" activity to detach from the PS network.

Please note that in case the measurements will be performed on LTE (RAT lock set with Technology = "LTE"), or if they might be performed on such a network (no RAT lock set, but an LTE network is present), then the PS Attach should be preceded by a specification of the APN to be used. Do this by means of an "AT" activity containing the following string in the AT Command property:

This activity has no unique properties.