TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R07
Advance Information
System description
Page 64 of 158
1.15.15
In-band Modem (eCall / ERA-GLONASS)
In-band modem for eCall / ERA-GLONASS emergency applications is not supported by TOBY-L2 series
modules “00”, “01”, and “50” product versions and by MPCI-L2 series modules.
In-band Modem solution for eCall and ERA-GLONASS emergency call applications over cellular networks is
implemented according to
3GPP TS 26.267
BS EN 16062:2011
[17] and
ETSI TS 122 101
[18] specifications.
eCall (European) and ERA-GLONASS (Russian) are initiatives to combine mobile communications and satellite
positioning to provide rapid assistance to motorists in the event of a collision, implementing automated
emergency response system based the first on GPS the latter on GLONASS positioning system.
When activated, the in-vehicle systems (IVS) automatically initiate an emergency call carrying both voice and data
(including location data) directly to the nearest Public Safety Answering Point (PSAP) to determine whether
rescue services should be dispatched to the known position.
Figure 26: eCall and ERA-GLONASS automated emergency response systems diagram flow
For more details regarding the In-band Modem solution for the European eCall and the Russian ERA-GLONASS
emergency call applications, see the
u-blox eCall / ERA-GLONASS Application Note
1.15.16
SIM Access Profile (SAP)
SIM Access Profile (SAP) is not supported by TOBY-L2 “00”, “01”, and “50” product versions or by MPCI-
L2 series modules.
SIM access profile (SAP) feature allows accessing and using a remote SIM card / chipping instead of the local SIM
directly connected to the module SIM interface.
A dedicated SAP channel over USB and a dedicated multiplexed SAP channel over UART are implemented for
communication with the remote SIM card/chip.
Communication between TOBY-L2 series module and the remote SIM is conformed to client-server paradigm:
The module is the SAP client establishing a connection and performing data exchange to a SAP server directly
connected to the remote SIM that is used by the module for LTE/3G/2G network-related operations. The SAP
communication protocol is based on the
SIM Access Profile Interoperability Specification
A typical application using the SAP feature is the scenario where a device such as an embedded car-phone with
an integrated TOBY-L2 series module uses a remote SIM included in an external user device (e.g. a simple SIM
card reader or a portable phone), which is brought into the car. The car-phone accesses the LTE/3G/2G network
using the remote SIM in the external device.
