Siemens MTX-H15 user manual Short Message Service, Voice Calls

MTX-H15	UMTS-HSDPA terminal modem		http://www.matrix.es
Feature		Implementation
SMS		Point-to-point
		MT and MO Cell broadcast
		Text and PDU mode
Audio		Audio speech codecs
		GSM: AMR, EFR, FR, HR
		3GPP: AMR
		One ringing melody supported
		CEPT supervisory tones supported
		DTMF supported
		2 audio modes: Approval, Router
Software
AT commands		AT-Hayes GSM 07.05 and 07.07, Siemens
Firmware update		Firmware update from host application over USB.
Interfaces
USB		Supports a USB 2.0 Full Speed (12Mbit/s) device interface.
Wakeup Control		Signal pin to wake up an inactive USB Host into an active state.
Status		Bi-colour LED to indicate network connectivity status.
Audio		1 analog interface
UICC interface		Supported chip cards: SIM / UICC 3V, 1.8V
Antenna		50Ohms. External antenna can be connected via FME M antenna connector
Module interface		Mini USB-B connector
Power on/off, Reset
Power on/off		Switch-on by hardware pin TURN_ON
		Switch-off by hardware pin TURN_OFF
		Switch-off by AT command
Reset		Orderly shutdown and reset by AT command
Emergency off		Emergency off by hardware pin TURN_OFF

1.3.2 Short Message Service

The wireless modem supports the following SMS services:

•Sending; MO (mobile-originated) with both PDU (protocol data unit) and text mode supported

•Receiving; MT (mobile-terminated) with both PDU and text mode supported

•CBM (cell broadcast message); a service in which a message is sent to all subscribers located in one or more specific cells in the GSM network (for example, traffic reports)

•SMS status report according to 3GPP TS 23.40

1.3.3 Voice Calls

The wireless modem offers the capability of MO (mobile originated) and MT (mobile terminated) voice calls, as well as supporting emergency calls. Multi-party, call waiting and call divert features are available. Some of these features are network operator specific.

For the inter-connection of audio, the wireless modem offers balanced analogue input and output lines. The wireless modems support HR, FR, EFR and AMR vocoders.

MTX-H15 User Manual V.2.0Pag. 8 Preliminary. Subject to change without prior notice