ELTEX SMG-1016M User manual

SMG-1016M, SMG-2016
Operation manual, firmware version 3.10.1
Digital gateway

2SMG Digital Gateway
SMG-1016M Firmware Version: V. 3.10.1.2530
SMG-2016 Firmware Version: V. 3.10.1.2530
SIP adapter version: 3.10.1.18
Document
version
Firmware
version
Issue date
Revisions
Version 3.5
V.3.10.1
23.07.2018
Added:
–edit identifier of the link for V5.2;
–own subscribers via PRI;
–RADIUS servers aggregation into groups for different servers usage in RADIUS profiles;
–an opportunity to send non-modified CgPN or CdPN in User-Name to RADIUS independent
from assigned CgPN and CdPN modifiers;
–an option to ignore HOLD indication in SS7 linkset settings;
–"Blacklist" VAS (for SMG-2016);
–"Do not disturb" VAS (for SMG-2016);
–NTP server;
–NTP servers advertisemnt through DHCP.
Version 3.4
V. 3.10.0
06.12.2017
Changed:
–the section "fail2ban" has been renamed to "dynamic firewall";
–the section " firewall profiles" has been renamed to "static firewall";
–rules of blocking in dynamic firewall has been separated for different services.
Added:
–numbers modification while dial plan changing ;
–delayed applying of configuration changes in dial plans;
–the mask "exception" when a number is selected;
–an opportunity to set the description of a trunk group;
–automatic uploading of configuration via FTP and TFTP protocols;
–transmission of requests to RADIUS according to selection by modifiers tables;
–transmission of subscriber IP address to RADIUS in Framed-IP-Address attribute;
–settings of SNMP notifications on RADIUS requests;
–BLF and intercom configuring while subscriber configuration via SNMP;
–access to call records according to call records category;
–automatic uploading of call records to FTP;
–call recording to USB storage;
–a name of recorded call contains a dial plan;
–hop counter settings in SS7 linksets;
–Location Number modification;
–SIP headers transit;
–optional display-name filling when a call without display-name is received;
–automatic gain management;
–notification of subscribers by recorded message;
–SIP subscribers authorization only via IP address;
–settings of subscriber displayed name and priority of using configured name;
–traceroute functions.
Version 3.3
V. 3.9.0
31.07.2017
Added
–new V5.2 LE protocol;
–new VAS types: access to intercity calls via password, password activation, outgoing calls
restriction (Appendix I. Working with VAS services);
–copying of prefixes among dial plans (3.1.6 Dial plans);
–selection of egress RADIUS profile in SIP interface settings (section 3.1.7.3.1.1 SIP interface
settings tab);
–opportunity to change order of SIP interfaces in the list;
–selection of dial plan in Dial block of IVR scenario;
–opportunity to download MIB files from the device;

SMG Digital Gateway 3
–local GateKeeper operation description.
Version 3.2
V. 3.8.0
09.01.2017
Added
–Time rounding selection for RADIUS parameters;
–Conversation record file name transmission in RADIUS parameters;
–'Clear All' service management through RADIUS for dynamic subscribers;
–# and * usage in IVR select blocks;
–The quantity of numbering plans has been extended to 255 on SMG-20161;
–Common prefix creation for all pickup groups;
–Number modifiers testing;
–Selective E1 stream assignment from SS7 linksets to different trunk groups;
–SS7 channel continuity testing through the WEB interface;
–If SIP RURI and To fields has a distinction, Redirecting and Original Called numbers issuing will
be disabled;
–Diversion field can be issued in SIP URI format;
–+ symbol transmission can be disabled for international numbers;
–subnet address assignment for incoming calls is available in SIP interface configuration;
–DTMF transmission by SIP NOTIFY (Cisco DTMF);
–Incoming and outgoing calls restrictions can be configured separately for SIP subscribers;
–Language selection and saving based on browser configurations and user selection;
–Call hold in incoming trunk with automatic connection via alternative route, in case of
connection loss;
–INVITE duplication to SMS receiver server;
–SMS receiving via SMPP, then transmission via SIP to SMS server.
Changed
–All IVR settings were moved to IVR configuration tab
–'IVR Caller Info' block keeps initial subscriber's name , if it is out of the number mask (initial
name was deleted in previous firmware versions)
Version 3.1
V.3.7.0
26.08.2016
Added:
–Setting of SM-VP submodule usage
–Customizable set of CDR fields
–List of CDR fields is extended
–Restriction of call duration on prefix
–Optional outgiving a MOH in settings of trunk group
–Setting a BLF monitoring group
–New options of SIP headers for general loudspeaker system (intercom)
Version 3.0
V.3.6.0
14.06.2016
Added:
–Intercom and paging calls
–Restriction for quantity of calls (CPS) at trunks
–Fault indication for CPS limit exceeded at trunks
–SS7 signal link management via web configurator
–SS7 (CIC) channel management via web configurator
–RADIUS profile selection for outgoing communications in trunk group settings
–'Local ringback for early-media' option
QSIG tunneling protocol in SIP (SIP-Q)
Version 2.9
V.3.5.1
04.04.2016
Added:
–P-Early-Media support (RFC5009).
Version 2.8
V.3.5.0
21/03/2016
Added:
–Voice notification on conversation recording start
–WEB, TELNET, SSH intrusion protection in Fail2ban
–Configurable Q.850 release causes list for redundant trunk group transition
–Detection of * and # digits as a flash;
–Conference assembly with the consequent assembly with re-INVITE with sendonly flag
–RADIUS-acct optional sending to both connection branches
–Dial plan name is displayed in settings tree
–Text description for each modification rule
–Changed mask order in prefix and modifier table
–Caller ID request in trunk group for incoming communication
–Call duration optional rounding up or down in CDR
–Configuration file upload in format cfg_${dev-name}_YYYYMMDD.yaml
–RFC6432 'Carrying Q.850 Codes in Reason Header Fields in SIP (Session Initiation Protocol)
Responses' support
–VLAN configuration on switch for SMG-2016
Version 2.7
V.3.4.2
06.11.2015
Added:
–Call hold/release by pressing *, #
–Optional AV-Pair Class usage for SS7 subscriber category transmission
–
–limit for Q.931 protocol to 30sec
Version 2.6
V.3.4.0
03.09.2015
Added:
–Configuration of CDR file creation mode
1Available only under VAS license

4SMG Digital Gateway
–Configuration of CDR data storage directories
–Ability to add disconnection initiator tag to CDR
–IVR scenario prefix type
–Pickup group prefix type
–Clear Channel configuration
–Clear Channel override configuration
–Clear Channel-transit configuration
–local direction configuration for trunk
–Caller dial plan and mask configuration for call group
Version 2.5
V.3.3.0
21.05.2015
Added:
–Per-core CPU monitoring
–SIP response list for redundant trunk group transition
–'Redirecting number' usage in call forwarding
–New call group operation modes
–REC and Caller Info blocks in IVR scenarios
–Blocking by fail2ban addresses list
–Original or processed numbers transmission in RADIUS messages
–RADIUS- Authorization transmission during local redirection
–Time transmission in UTC format in RADIUS-Accounting messages
–Playing of standard voice message phrases upon receiving denial message from RADIUS server
with a reason for denial
Version 2.4
V.3.2.1
30.03.2015
Added:
–IVR scenario configuration
–Storage path for IVR scenarios and audio
–Storage media information
–Conference with consequent assembly and assembly by the list
–Conference prefix type
–IVR scenario prefix type
Version 2.3
V.3.2.0
28.10.2014
Added:
–Call Group and Pickup Group prefix type
–'Send up to 15 digits to IAM' and 'Check presence of Redirecting/Original Called in incoming
redirection' options in SS7 link set settings
–'Transitional registration' option in SIP interface
–Configuration of call groups
–Configuration of pickup groups
–Ability to define gateway for network interfaces
–Dynamic subscriber group configuration
Version 2.2
V.3.0.0
02.09.2014
Added:
–Global Dual Homing port redundancy
–Ability to select Ethernet port operation mode
–Device firmware update via FTP
–'NAT keep-alive' option in SIP profile
–https connection option
Version 2.1
V.2.15.02
02.05.2014
Added:
–Emergency phasing in case of a single signal link in linkset
–Fault indication when opposite device is not available via SIP
–Caller category transmission via SIP in cpc and cpc-rus fields
–Restriction for optional field transmission in SIP messages
–VAS timeouts
–SS7 timers
–Conversation recording feature
Version 2.0
V.2.15.01
07.02.2014
Added:
–VAS configuration
–VAS operation application
–Radius call management configuration
Version 1.12
V.2.14.02
12.12.2013
Added:
–LACP settings
–Configuration for dialing digits transmission to IAM during overlap
–Configuration for minimum subscriber registration interval
–DTMF RFC2833 PT transmission
Version 1.11
V.2.14.01
10.10.2013
Added:
–H.323 protocol operation support
–Q.850-causes and SIP-replies match table configuration
–Scheduled routing configuration
–RTP port range configuration
–FTP server configuration
–Firewall profile configuration
–Voice message usage configuration
–Device selection for fault logging
–View submodule link connection information
–SMG connection method example for operation in SS7 quasi-associated mode via PBX with STP
features.

SMG Digital Gateway 5
–SMG connection method example for operation in combined mode
–Appendix. Voice messages and music on hold (MOH).
Version 1.10
V.2.12.01
20.05.2013
Added:
–Appendix 'Guidelines for SMG operation in public network'
Version 1.9
V.2.12.01
1.04.2013
Added:
–Network services section Configuration of NTP, DHCP, SNMP parameters and allowed
address list in separate section
–Assigning system parameters
–E1 channel monitoring
–VoIP submodule monitoring
–Trunk direction configuration
–Original CdPN and RedirPN modifiers
–Q.931 timer configuration
–Device access restriction settings
–Incoming or outgoing communication restriction for subscriber
–Configuration of network interface for signal SIP messages and voice traffic reception and
transmission
Version 1.8
V.2.11.02
09.01.2013
Added:
–Expanded list of E1 stream monitoring parameters
–SFP module monitoring
–Fault state monitoring
–Alarm events list
–MTP3 (DPC-MTP3) destination point code function support
–ISUP (DPC- ISUP) destination point code function support
–Dial plan wildcard search
–NAT (comedia mode) for SIP operation via NAT
–VPN/PPTP interface configuration
–Creation of list of allowed addresses used for device connection
–Trace filters:
–restriction on number of simultaneous calls for subscriber
Version 1.7
V.2.10.04
20.09.2012
Added:
–Modifier table configuration in separate menu
–Modifier selection from table during cdr configuration
–Modifier selection from table during pbx record configuration
–Modifier selection from table during RADIUS record configuration
–Modifier selection from table during trunk group configuration
Version 1.6
V.2.10.02
20.08.2012
Added:
–Fail2ban settings
–CPU utilization monitoring
–Modifier operation examples
–Configuration of SIP interface registration parameters
–View list of addresses issued via DHCP
–STUN server settings
–Digest authorization settings
–SIP subscribers group editing
Version 1.5
V.2.9.05
20.03.2012
Added:
–
–Additional settings for CDRs (redirection tags, redirecting number)
–Separate interface for RADIUS message exchange
Version 1.4
V.2.9.03
28.12.2011
Added:
–Maximum number of trunk groups and SIP interfaces increased up to 64
–SNMP trap configuration
–DHCP server management
–IP-MAC address binding
–Apply/confirm switch settings w/o gateway reboot
–Apply/confirm VLAN settings w/o gateway reboot
–Subscriber number availability check against configured SIP subscriber database
–Availability check for routing by number
–Ability to read CDR from local drives
–Reception monitoring for media traffic coming from the specific IP
Version 1.3
V.2.1.01
3.11.2011
Added:
–CDR configuration
Version 1.2
V.2.1.01
21.10.2011
Bugfixes
Version 1.1
V.2.0.10
10.10.2011
Added:
–DHCP server settings
–Received/transferred signal volume settings
Version 1.0
V.2.0.10
12.09.2011
First edition

6SMG Digital Gateway
CONVENTIONAL SYMBOLS
Symbol
Description
Calibri
Notes, warnings, chapter headings, titles, table titles are written in bold.
Calibri
Important information is written in italic.
Courier New
Command entry examples, command execution results and program output
data are written in Courier New semibold.
<KEY>
Keyboard keys are written in upper-case and enclosed in angle brackets.
Analogue phone unit icon
SMG digital gateway icon
Softswitch ECSS-10 software switch icon
Digital subscriber PBX icon
Network Connection icon
Optical transmission medium
Notes and warnings
Notes contain important information, tips or recommendations on device operation and
setup.
Warnings inform users about hazardous conditions which may cause injuries or device
damage and may lead to the device malfunctioning or data loss.

SMG Digital Gateway 7
TARGET AUDIENCE
This operation manual is intended for technical personnel that performs switch installation, configuration,
monitoring, and maintenance using web configurator. Qualified technical personnel should be familiar with the
et networks design concepts.

8SMG Digital Gateway
TABLE OF CONTENTS
INTRODUCTION..............................................................................................................................................11
1 DEVICE DESCRIPTION................................................................................................................................12
1.1 Application ........................................................................................................................................ 12
1.2 Typical Application Diagrams............................................................................................................ 14
1.2.1 Mini IP-PBX.............................................................................................................................. 16
1.2.1 Outstation via V5.2.................................................................................................................. 16
1.3 Device Design and Operating Principle............................................................................................. 18
1.3.1 SMG-1016M Design ................................................................................................................ 18
1.3.2 SMG-2016 Design.................................................................................................................... 19
1.3.3 SMG Operating Principle......................................................................................................... 20
1.4 Main Specifications........................................................................................................................... 21
1.5 Design................................................................................................................................................ 23
1.5.1 SMG-1016M ............................................................................................................................ 23
1.5.2 SMG-2016................................................................................................................................ 24
1.6 LED Indication ................................................................................................................................... 25
1.6.1 Device light indication in operation ........................................................................................ 25
1.6.2 LED indication of E1 stream status.......................................................................................... 26
1.6.3 Light indication of Ethernet 1000/100 interfaces................................................................... 27
1.6.4 Light indication during startup and reset to factory defaults................................................. 27
1.6.5 Fault LED Indication................................................................................................................. 28
1.7 'F' button operation .......................................................................................................................... 29
1.8 Saving factory configuration ............................................................................................................. 29
1.9 Password recovery............................................................................................................................ 30
1.10 Delivery Package............................................................................................................................... 31
1.10.1 SMG-1016M ......................................................................................................................... 31
1.10.2 SMG-2016 ............................................................................................................................ 31
1.11 Safety instructions ............................................................................................................................ 31
1.11.1 General Guidelines............................................................................................................... 31
1.11.2 Electrical Safety Requirements ............................................................................................ 32
1.11.3 Electrostatic Discharge Safety Measures............................................................................. 32
1.11.4 Power Supply Requirements................................................................................................ 32
1.12 SMG Installation................................................................................................................................ 33
1.12.1 Startup sequence ................................................................................................................. 34
1.12.2 Support brackets mounting ................................................................................................. 34
1.12.3 Device rack installation ........................................................................................................ 35
1.12.4 Power module installation................................................................................................... 35
1.12.5 Removing the housing ......................................................................................................... 36
1.12.6 Submodule Installation ........................................................................................................ 38
1.12.7 Installation of ventilation units ............................................................................................ 39
1.12.8 SSD installation for SMG-1016M.......................................................................................... 41
1.12.9 SATA drive installation for SMG-2016.................................................................................. 42
1.12.10RTC battery replacement ..................................................................................................... 43
2 GENERAL SWITCH OPERATION GUIDELINES.............................................................................................45
3 DEVICE CONFIGURATION..........................................................................................................................46
3.1 SMG configuration via web configurator.......................................................................................... 46
3.1.1 System settings ....................................................................................................................... 49
3.1.2 Monitoring .............................................................................................................................. 52
3.1.3 Synchronization sources ......................................................................................................... 67
3.1.4 CDR settings ............................................................................................................................ 67
3.1.5 E1 streams............................................................................................................................... 77
3.1.6 Dial plans................................................................................................................................. 85

SMG Digital Gateway 9
3.1.7 Call routing.............................................................................................................................. 94
3.1.8 Internal resources................................................................................................................. 141
3.1.9 IVR......................................................................................................................................... 161
3.1.10 TCP/IP settings ................................................................................................................... 170
3.1.11 Network services ............................................................................................................... 174
3.1.12 Switch................................................................................................................................. 181
3.1.13 Security .............................................................................................................................. 188
3.1.14 Network utilities: ............................................................................................................... 195
3.1.15 RADIUS configuration ........................................................................................................ 197
3.1.16 Tracing ............................................................................................................................... 209
3.1.17 Call recording ..................................................................................................................... 214
3.1.18 Subscribers......................................................................................................................... 224
3.1.19 Working with objects and 'Objects' menu......................................................................... 244
3.1.20 Saving configuration and 'Service' menu........................................................................... 244
3.1.21 Time and date configuration ............................................................................................. 245
3.1.22 Firmware update via web configurator ............................................................................. 245
3.1.23 Licenses.............................................................................................................................. 245
3.1.24 'Help' menu........................................................................................................................ 246
3.1.25 Setting password for web configurator access.................................................................. 246
3.1.26 View factory settings and system information.................................................................. 247
3.1.27 Exit the configurator .......................................................................................................... 247
3.2 Command line, list of supported commands and keys .................................................................. 247
3.2.1 Tracing commands available through the debug port.......................................................... 249
3.3 SMG configuration via Telnet, SSH, or RS-232................................................................................ 250
3.3.1 List of CLI commands ............................................................................................................ 250
3.3.2 Change device access password via CLI................................................................................ 252
3.3.3 Statistics mode...................................................................................................................... 253
3.3.4 Management mode .............................................................................................................. 257
3.3.5 Port mirroring parameters configuration mode................................................................... 258
3.3.6 General device parameter configuration mode ................................................................... 259
3.3.7 CDR parameter configuration mode..................................................................................... 262
3.3.8 CDR field list .......................................................................................................................... 264
3.3.9 Access categories' configuration mode ................................................................................ 265
3.3.10 E1 stream configuration mode .......................................................................................... 265
3.3.11 Dynamic firewall's parameters configuration mode ......................................................... 268
3.3.12 Static firewal's parameters configuration mode ............................................................... 270
3.3.13 FTP parameter configuration mode................................................................................... 275
3.3.14 H.323 protocol parameter configuration mode ................................................................ 276
3.3.15 H.323 interface parameter configuration mode ............................................................... 277
3.3.16 Call group configuration mode .......................................................................................... 280
3.3.17 SS7 link set modification configuration mode................................................................... 281
3.3.18 SS7 timer configuration mode ........................................................................................... 282
3.3.19 Configuration mode of submodule usage ......................................................................... 284
3.3.20 Modifier table configuration mode ................................................................................... 284
3.3.21 Network parameter configuration mode .......................................................................... 287
3.3.22 Dial plan configuration mode ............................................................................................ 294
3.3.23 Pickup group configuration mode ..................................................................................... 298
3.3.24 PBX profile configuration mode......................................................................................... 298
3.3.25 Q.931 timer configuration mode....................................................................................... 300
3.3.26 RADIUS configuration mode .............................................................................................. 300
3.3.27 Conversation recording settings configuration mode ....................................................... 307
3.3.28 Call records masks configuration modes........................................................................... 307
3.3.29 Static route configuration mode........................................................................................ 308

10 SMG Digital Gateway
3.3.30 Q.850 release causes list configuration ............................................................................. 309
3.3.31 SIP/SIP-T general settings editing mode ............................................................................ 309
3.3.32 SIP/SIP-T interface parameter configuration mode........................................................... 310
3.3.33 Interface subscriber registration parameter configuration mode..................................... 317
3.3.34 SIP subscribers parameter configuration mode ................................................................ 317
3.3.35 Subscribers group's VAS configuration mode.................................................................... 323
3.3.36 PRI-subscribers parameters configuration mode .............................................................. 325
3.3.37 VAS configuration mode for PRI subscribers ..................................................................... 326
3.3.38 SS7 category modification configuration mode................................................................. 326
3.3.39 Switch parameter configuration mode.............................................................................. 327
3.3.40 Syslog parameter configuration mode .............................................................................. 334
3.3.41 Voice message file management configuration mode ...................................................... 336
3.3.42 IVR function configuration mode....................................................................................... 336
3.3.43 Trunk group configuration mode....................................................................................... 337
3.3.44 Trunk directions configuration mode ................................................................................ 338
3.4 SMG-2016 switch configuration ..................................................................................................... 339
3.4.1 Switch structure .................................................................................................................... 339
3.4.2 SMG 2016 switch interface management commands.......................................................... 340
3.4.3 Aggregation group configuration commands ....................................................................... 346
3.4.4 SMG-2016 board VLAN interface management commands................................................. 348
3.4.5 STP/RSTP configuration commands...................................................................................... 349
3.4.6 MAC table configuration commands .................................................................................... 351
3.4.7 Port mirroring configuration commands .............................................................................. 353
3.4.8 SELECTIVE Q-IN-Q configuration commands ........................................................................ 356
3.4.9 DUAL HOMING protocol configuration................................................................................. 358
3.4.10 LLDP protocol configuration .............................................................................................. 361
3.4.11 QOS Configuration ............................................................................................................. 367
3.4.12 Configuration operation commands.................................................................................. 370
3.4.13 Miscellaneous commands.................................................................................................. 371
APPENDIX A. CABLE CONTACT PIN ASSIGNMENT .......................................................................................373
APPENDIX B. ALTERNATIVE FIRMWARE UPDATE METHOD ........................................................................376
APPENDIX C. EXAMPLES OF MODIFIER OPERATION AND DEVICE CONFIGURATION VIA CLI......................379
APPENDIX D. TRANSMISSION OF VAS SETTINGS FROM RADIUS SERVER FOR DYNAMIC SUBSCRIBERS.....387
APPENDIX E. ROUTING, SUBSCRIBERS AND SIGNAL LINK PARAMETERS CORRELATION.............................389
APPENDIX F. GUIDELINES FOR SMG OPERATION IN PUBLIC NETWORK......................................................390
APPENDIX G. MONITORING SYSTEM INTERACTIONS ..................................................................................391
APPENDIX H. VOICE MESSAGES AND MUSIC ON HOLD (MOH)...................................................................395
APPENDIX I. WORKING WITH VAS SERVICES ...............................................................................................396
APPENDIX J. RADIUS CALL MANAGEMENT SERVICE....................................................................................403
APPENDIX K. MONITORING AND MANAGEMENT VIA SNMP ......................................................................410

SMG Digital Gateway 11
INTRODUCTION
Today, means of communication utilizing state-of-the-art hardware and software solutions evolve rapidly.
At that, the following problem arises: how to implement new communication devices that utilize alternative
data transmission principles into existing communication networks. The solution is to use special equipment that
interconnects the diverse network segments. Currently, such equipment is represented by digital gateways.
They allow for gradual transition from existing communication networks to more efficient ones that utilize
alternative operation principles.
At present, IP networks are considered to be the most efficient as they are weakly related to the data
transfer environment or data type and also flexible and manageable. Designed and manufactured by Eltex, SMG
digital gateway allows for the interfacing of traditional communication networks based on the circuit-switching
principle with communication networks used packet-switching data transmission.
This operation manual details main features of SMG-1016M and SMG-2016 digital gateways. In this
document you will find technical specifications of the gateway and its components. Also, it contains an overview
of the operation procedure and software-based maintenance.

12 SMG Digital Gateway
1DEVICE DESCRIPTION
1.1 Application
Digital gateways SMG-1016M and SMG-2016 allow for the interfacing of PSTN (E1) signalling and media
streams and VoIP networks, and also perform media gateway functions (codec conversion, conference call
establishing, tone signal/DTMF reception and generation, voice message output).
SMG supports up to 16 E1 paths, up to 495 E1-side and 768 VoIP-side voice (media) links (when G.711
codec is used with packetization time 20ms or greater).
Submodule gateway design allows for flexible capacity alteration, and the minimum module type quantity
makes it easier to expand and upgrade the system.
SMG is an optimal and robust solution for telecommunication infrastructure upgrade, development and
migration from PSTN to NGN.
SMG main specifications:
Number of E1 interfaces: 4 to 16, in increments of 4
Up to 768 VoIP channels (128 channels in TDM for connecting to a single submodule)
Number of Ethernet ports for SMG-1016M:
–3 x 10/100/1000BASE-T ports
–2 x 1000-Base-X (SFP) ports
Number of Ethernet ports for SMG-2016:
–4 x 10/100/1000BASE-T ports
–2 x 1000-Base-X (SFP) combo-ports
Static address and DHCP support
DNS server
VoIP protocols: SIP, SIP--I, H.323, MGCP1, MEGACO1, SIGTRAN1
TDM protocols: ISDN PRI(Q.931), QSIG and CORNET for subscriber name transmission, SS7
(associated and quasi-associated modes operation), V5.2;
SIP subscriber registration support:
–Up to 2000 for SMG-1016M
–Up to 3000 for 2016
DTMF transmission (SIP INFO, RFC2833, in-band, SIP NOTIFY)
Echo cancellation (G.168 recommendation)
Voice activity detector (VAD)
1Not supported in the current firmware version

SMG Digital Gateway 13
Comfortable noise generator (CNG)
Adaptive or fixed jitter buffer
V.152 data transmission
fax transmission:
–G.711 pass through
–T.38 UDP Real-Time Fax
NTP support
DNS support
SNMP support
Bandwidth and QoS restriction for SMG-1016M
ToS and CoS for RTP and signalling
VLAN for RTP, signalling and management
Firmware update: via web configurator, CLI (Telnet, SSH, console (RS-232))
Configuration and setup (also remotely):
–Web configurator
–CLI (telnet, SSH, console (RS-232))
Remote monitoring:
–Web configurator
–SNMP
SIP/SIP-T/SIP-I functions:
RFC 2976 SIP INFO (for DTMF transmission);
RFC 3204 MIME Media Types for ISUP and QSIG (ISUP support);
RFC 3261 SIP;
RFC 3262 Reliability of Provisional Responses in SIP (PRACK);
RFC 3263 Locating SIP servers for DNS;
RFC 3264 SDP Offer/Answer Model;
RFC 3265 SIP Notify
RFC 3311 SIP Update;
RFC 3323 Privacy Header
RFC 3325 P-Asserted-Identity
RFC 3326 SIP Reason Header;
RFC 3372 SIP for Telephones (SIP-T);

14 SMG Digital Gateway
RFC 3398 ISUP/SIP Mapping;
RFC 3515 SIP REFER;
RFC 3581 An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing;
RFC 3665 Basic Call Flow Examples;
RFC 3666 SIP to PSTN Call Flows;
RFC 3891 SIP Replaces Header;
RFC 3892 SIP Referred-By Mechanism;
RFC 4028 SIP Session Timer;
RFC 4566 Session Description Protocol (SDP);
RFC 5009 P-Header;
RFC 5373 Requesting Answering Modes for the Session Initiation Protocol;
RFC 5806 SIP Diversion Header;
RFC 6432;
Q1912.5 SIP-I;
SIP/SIP-T/SIP-I interaction;
SIP Enable/Disable 302 Responses;
Delay offer;
SIP OPTIONS Keep-Alive (SIP Busy Out);
NAT support (comedia mode);
SIP registrar (optional).
1.2 Typical Application Diagrams
This manual covers several SMG device connection methods:
Interfacing of TDM and VoIP network signalling and media streams
In this configuration, device enables connection for up to 16 E1 streams with various signalling protocols
(SS7, ISDN PRI/QSIG/CORNET, V5.21) and maintenance for up to 768 channels uncompressed (G.711 codec), up
to 432 channels compressed (G.729 A / 20-80), or 324 T.38 fax channels.
Device connects to the IP network via 10/100/1000 BASE-T network interface using H.323/SIP/SIP-T/ SIP-I
protocols.
1Not supported in the current firmware version.

SMG Digital Gateway 15
* Not supported in the current version
Fig. 1 Interfacing of TDM and VoIP network signalling and media streams
Fig. 2 
ECSS-10 software switch.
* Not supported in the current version
Fig. 2 Interfacing of TDM and VoIP network signalling and media streams

16 SMG Digital Gateway
1.2.1 Mini IP-PBX
In this configuration, device allows for registration of up to 2000 subscribers for SMG-1016M and up to
3000 for SMG-2016 as well as the interaction with PSTN network via 16 E1 streams with various signalling
protocols (SS7, ISDN PRI/QSIG/CORNET, V5.2).
Fig. 3 Mini IP-PBX based on SMG-1016M
Fig. 4 Mini IP-PBX based on SMG-2016
1.2.1 Outstation via V5.2
The activation of additional features of IP PBX ECSS-10 software module allows to arrange digital loop
carrier via V5.2 and to service up to 2000 subscribers through SMG-1016M and up to 3000 subscribers through
SMG-2000 with support for wide VAS set. You may use equipment supporting V5.2 of any manufacturer as an
outstation.

SMG Digital Gateway 17
Fig. 5 V5.2 AN outstation based on SMG-1016M
Fig. 6 V5.2 AN outstation based on SMG-2016

18 SMG Digital Gateway
1.3 Device Design and Operating Principle
1.3.1 SMG-1016M Design
SMG-1016M features submodule architecture and contains the following elements:
Controller featuring:
–Controlling CPU
–Flash memory: 64Mb
–
Up to 4 E1 stream submodules C
Up to 6 IP submodules SM-VP-M300
Ethernet switch (L2), 3 x 10/100/1000BASE-T ports, 2 x MiniGBIC (SFP) ports
Switch fabric
Phase-lock-loop (PLL) frequency control system
The figure below shows SMG-1016M functional chart.
Fig. 7 SMG-1016M functional chart

SMG Digital Gateway 19
1.3.2 SMG-2016 Design
SMG-2016 features submodule architecture and contains the following elements:
Controller featuring:
–Controlling CPU
–Flash memory: 1024 MB
–
Up to 4 E1 stream submodules C
Up to 6 IP submodules SM-VP-M300
Ethernet switch (L2), 4 x 10/100/1000BASE-T ports, 2 x MiniGBIC (SFP) combo ports
Switch fabric
Phase-lock-loop (PLL) frequency control system
The figure below shows SMG-2016 functional chart.
Fig. 8 SMG-2016 functional chart

20 SMG Digital Gateway
1.3.3 SMG Operating Principle
In TDM-IP direction, signal coming to E1 streams is transferred to VoIP submodule audio codecs (6 lines x
128 TDM channels) via the intrasystem backbone to be encoded using one of the selected standards and
transferred further in the form of digital packets to the Ethernet switch. In IP-TDM direction, digital packets
coming from Ethernet switch are transferred to VoIP submodules to be decoded and transferred further to E1
streams via the intrasystem backbone.
External 2 Mbps E1 streams are transmitted to framers through matching transformers. At that,
synchronization signal is extracted from the stream and fed to the common synchronization line of the device.
Synchronization line priority management is performed at the software level according to the defined algorithm.
Switch fabric is integrated into the intrasystem backbone and enables communication between the E1
(C4E1) and VoIP (SM-VP-M300) submodules.
For device firmware architecture, see the figure below.
Fig. 9 SMG firmware architecture