coM.sat IP Basic ISDN Quick Installation Guide

coM.sat 

IP Basic ISDN 

Quick Installation Guide 

www.comsat.de 

E-Mail: support@comsat.de 

Support-Hotline: +49 (0) 180 5 633343

Quick Installation Guide coM.sat IP Basic ISDN 

1. Content 

1. CONTENT 2 

2. LIST OF FIGURES 2 

3. DEVICE DESCRIPTION 3 

4. STARTUP 3 

5. CONFIGURATION 5 

5.1 ACCESS TO WEB-INTERFACE 5 

5.2 MODIFICATION OF THE IP-ADDRESS 5 

5.2.1 LAN-Port 5 

5.2.2 WAN-Port 5 

5.3 PIN 6 

5.4 ROUTING TABLE 6 

6. CONNECTION OF VON IP-PHONES 7 

6.1 SIP-PROXY 7 

6.2 SIP-TRUNK 9 

7. FUNCTION DESCRIPTION 10 

2. List of figures 

FIGURE 1: FRONT SIDE OF THE COM.SAT IP BASIC ISDN ............................................................. 3 

FIGURE 2: BACK SIDE OF THE COM.SAT IP BASIC ISDN ............................................................... 3 

FIGURE 3: CONNECTION OF THE COM.SAT IP BASIC ISDN ............................................................ 3 

FIGURE 4: PIN ............................................................................................................... 6 

FIGURE 5: ROUTING-TABLE ................................................................................................ 6 

FIGURE 6: CONNECTING EXAMPLE ........................................................................................ 7 

FIGURE 7: CONFIGURATION OF THE SIP-EXTENSION .................................................................. 8 

FIGURE 8: GSM-CONFIGURATION ........................................................................................ 9 

FIGURE 9: SIP-TRUNK ...................................................................................................... 9 

Created: Page: File: 

07/2011 2 Quick_Installation_Guide_ Version_1 14_eng.doc 

Copyright - DIN 34


3. Device description 

Front side view: 

1 DC-Socket for the power supply 

2 Socket for the NT-Port (RJ-45) 

3 Socket for the TE-Port or for 

synchronisation (RJ-45) 

4 Socket for the USB-Interface (USB-B) 

5 Switch-key to RESET the unit 

6 Socket for LAN-Connection (RJ45) 

7 Socket for the WAN-Connection (RJ45) 

Back side view: 

1 SMA-Connector for the GSM/UMTS- 

Channel 2 antenna 

2 SIM-Card reader of the GSM/UMTS- 

Channel 2 

3 SIM-Card reader of the GSM/UMTS- 

Channel 1 

4 SMA-Connector for the GSM/UMTS- 

Channel 1 

4. Startup 

Figure 1: Front side of the coM.sat IP Basic 

Figure 2: Back side of the coM.sat IP Basic 

• Place the coM.sat IP Basic ISDN in 

appropriate location, where a proper 

power supply (mains) is available. 

• Screw the antenna(s) on the SMA- 

Socket(s). 

• To change the IP-Address connect the 

LAN-Port of the coM.sat IP Basic ISDN with 

PC or Notebook (see chapter 5.2). 

• Connect the ISDN-line (if available) with 

the BRI NT/TE-Port of the coM.sat IP Basic 

ISDN. 

• Before the SIM card is inserted, please 

read the chapter 5.3 on how to deal with Figure 3: Connection of the coM.sat IP Basic 

the SIM card and the PIN. 

• Connect the 12V-power supply with the coM.sat IP Basic ISDN. 

• After successful configuration the coM.sat IP Basic ISDN is operational. 



Copyright - DIN 34


Table 1: LED-Indication 

LED Status Meaning 

LAN Off Port is not connected 

Green - on Port is connected and identified 

Green - flashing Data transmission 

WAN Off Port is not connected 

Green - on Port is connected and the router identified 

Green - flashing Data transmission 

WWAN (3G) Off No internet connection via WWAN 

Green - on Internet via 3G 

Green - flashing Data transmission via 3G 

Yellow - on Internet via GPRS 

Yellow - flashing Data transmission via GPRS 

Active 1 Off ISDN Layer 1 is up 

Yellow - on Active call on GSM/UMTS-Channel 1 

Yellow - flashing rapidly ISDN Layer 1 is down 

Yellow – flashing slowly Call setup on channel 2 

Network 1 Off No module available 

Green - on Module 1 is registered in network 

Green - flashing rapidly SIM-Card is not inserted 

Green - flashing slowly Waiting for network registration 

Power Off Unit off 

Green - on Unit is on 

Sync Off No Synchronisation 

Red - on Unit is synchronised with PBX / PSTN (TE-Mode) or PBX (NT- 

Mode) 

Active 2 Off ISDN Layer 2 is up 

Yellow - on Active call on GSM/UMTS-Channel 2 

Yellow - flashing rapidly ISDN Layer 2 is down 

Yellow - flashing slowly Call setup on channel 2 

Network 2 Off No module available 

Green - on Module 2 is registered in network 

Green - flashing rapidly SIM-Card is not inserted 

Green - flashing slowly Waiting for network registration 



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5. Configuration 

5.1 Access to Web-Interface 

The user can configure all the parameters of the coM.sat IP Basic ISDN using the 

web interface. It may be necessary, requiring the user to change the port 

parameters of the network. This is required if the coM.sat IP Basic ISDN as part of 

a network is established and shall hereafter be accessed on the Web interface to 

configure the rest of the system (see chapter 5.2). To access the web interface, 

enter the IP address of the coM.sat IP Basic ISDN in the address field of your Web 

browser. 

Enter the default password 1234 on the login page. 

Your login was successful, if listed on the left side of the screen the appropriate 

links. 

Now all parameters of the coM.sat IP Basic ISDN can be programmed by clicking 

on the appropriate link to the specific property. 

After switching on the coM.sat IP Basic ISDN parameters are programmed with 

the given order: 

1. Port-Parameter of the network 

2. Selection of the region and County code 

3. Enter SIM PIN 

4. Mobile Port-Parameter 

5. Port-Parameter for SIP 

6. Port-Parameter for ISDN NT-Port or TE-Port 

7. Routing 

After successful programming of the coM.sat IP Basic ISDN the user is able to 

make incoming and make outgoing calls. 

5.2 Modification of the IP-Address 

5.2.1 LAN-Port 

If the coM.sat IP Basic ISDN is connected to the LAN-port in the used PC a 

static IP address is required to be registered within the range of the LANport. 

This is necessary because the coM.sat IP Basic ISDN cannot assign 

an IP address via DHCP. 

The default IP address of the LAN-port is: 192.168.2.26. 

It is possible to change the IP address of the coM.sat IP Basic ISDN with 

the menu item "Network Parameters / Settings". 

5.2.2 WAN-Port 

The coM.sat IP Basic ISDN can obtain an IP address from the DHCP server 

or uses the fixed IP address 192.168.1.111 

It is possible to change the IP address of the coM.sat IP Basic ISDN with 

the menu item "Network Parameters / Settings". 



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5.3 PIN 

Figure 4: PIN 

The PIN is a security feature on the SIM card, which is used in the device to 

protect data stored on the SIM-card from misuse. The PIN should contain at 

least four digits and a maximum 8 digits. If the PIN of the SIM card is disabled, 

then the edit field remains empty. 

If an incorrect PIN is entered, you can see the message 'SIM PIN wrong'. 

After three failed attempts or rebooting with the wrong PIN, the SIM-card is 

locked. It appears the message 'PUK must be entered'. To unlock the SIM-card, 

the PUK must be entered. If the wrong PUK is entered ten times, the card will be 

useless. For more information you can see the 'GSM/UMTS Channel Status'. 

5.4 Routing table 

In the routing table, the user can enter the routing for different destination 

numbers. The main table parameters are: 

Figure 5: Routing-Table 

Destination number: In this field the destination number will be entered. It 

can be of a maximum of 24 characters. Valid characters are 0 to 9, *, #, and dot 



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(.). The numbers will be routed trough the selected ports, where port 1 has 

higher priority than port 2 and 3, respectively. 

6. Connection of IP-Phones 

Figure 6: Connecting example 

6.1 SIP-Proxy 

To program the SIP proxy, the following parameters can be set: 

Enable SIP Extension: Select the checkbox to enable the SIP extension. If this 

flag is disabled, you will not able to use this extension. 

Name: Enter a name for the SIP extension. It is optional. 

SIP ID: Your SIP ID is used to register the SIP extension into the Registrer 

Server of the coM.sat IP Basic ISDN. It is the number to which the SIP extension 

can be called. 

Authentication ID: The authentication ID of the coM.sat IP Basic ISDN is used 

to authenticate the SIP messages received from the SIP extension to the SIP 

proxy. 

Authentication Password: The authentication password of the coM.sat IP Basic 

ISDN is used to authenticate the SIP messages. The password can be up to 24 

characters long and contain all ASCII characters. 



Copyright - DIN 34


Max calls: This field specifies the number of calls allowed for the SIP-extension. 

You can select 1 or 2. 

DTMF options: This option determines how to send the DTMF signals from SIP 

Extensions to the coM.sat IP Basic ISDN when a DTMF digit is pressed. 

FAX options: This parameter determine how the coM.sat IP Basic ISDN handled 

the fax messages from the SIP Extension. 

The following is a configuration example how a GSM-connection to a mobile is 

setup from a IP-phone: 

Configuration of SIP Extension: 

To make calls with an IP phone, you should connect it to the LAN-port of the 

coM.sat IP Basic ISDN. Select in the left menu selection 'SIP proxy'. You can 

configure the parameters in the submenu 'Settings'. 

Figure 7: Configuration of the SIP-Extension 

To allow IP telephony, the checkbox enable SIP Extension is required to be 

activated. Then, it should be enter the Name of the extension to which the IP 

phone is connected. This name appears at the other station as a text in the 

display. Next, the SIP ID is entered. This is the phone number where the phone 

is to be reached. The Authentication ID and the Authentication password 

are used to register the SIP-extension in the SIP-proxy. The ID used to be the 

number of the extension. The same settings should be made at the IP phone. 

Finally, Fixed Route Selection should be selected. With the drop-down menu, 

you can choose the route of the destination call is given. In this example a 

GSM/UMTS channel has to be selected. 

After configure the necessary settings on the IP phone, a connection to a mobile 

subscriber can be started. 

To save the configuration, please press the Submit button 

GSM-Configuration: 

As an example, the channel 1 of the coM.sat IP Basic ISDN is used. In the 

following web interface, the relevant parameters are displayed: 



Copyright - DIN 34


Figure 8: GSM-Configuration 

Select in the left menu selection, the main menu, GSM / UMTS Channel 1. 

To use the GSM channel 1, it is required to be activated first. Next, if the PIN of 

the SIM card is activated, the PIN should be entered. 

To save the configuration, please press the Submit button. 

6.2 SIP-Trunk 

The coM.sat IP Basic ISDN supports up to 4 SIP trunks. In every SIP trunk, an 

Internet Service Provider (ISP) can be entered. The providers may be different. 

The following parameters can be set: 

Figure 9: SIP-Trunk 

• SIP Trunk activate: To outgoing and incoming calls, the SIP trunk needs to 

be enabled. 



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• Name: The user can assign a name to the SIP trunk. If an outgoing call using 

the SIP trunk is made, it will appear at the called party's display. 

• SIP-ID: Enter the SIP ID provided by the ISP. 

• Address of the Registrar-Server: Enter the ISP provided address of the SIP 

registrar server. This can be an IP address or domain. 

• Port of the Registrar-Server: Enter the ISP provided the receiving port of 

the registar server. The valid range of the port of registrar server is between 

1024 to 65535 

• Send REGISTER message?: The coM.sat IP Basic ISDN sends a REGISTER 

message to the registar / outbound proxy server. 

• Gateway Mode: The coM.sat IP Basic V2 will accept incoming calls for SIP ID 

and Registrar/ Outbound Proxy Server programmed. If the user want the system 

to accept the incoming call for any SIP ID but only from Registrar/ Outbound 

Proxy Server programmed, this flag should be enabled. Thus, when enabled, SIP 

trunk would be used as gateway. 

• Allow outgoing calls without registration? : The device does not allow 

outgoing calls when the SIP trunk is not registered. However, to allow outgoing 

calls when the device is not registered in the registrar server, the parameter 

should be activated. 

• Re-registration timer: The user is required to enter the value for the reregistration 

timer. Before expiry of this timer, should the coM.sat IP Basic ISDN 

send the registration request to the registration server in order to remain 

registered. 

• Registration retry timer: This is the period between retries for registration. 

The coM.sat IP Basic ISDN sends the registration request until the SIP trunk is 

registered with the SIP server. 

• Maximum calls: The user is required to configure the maximum number of 

calls that are allowed on each SIP trunk. 

7. Function description 

The coM.sat IP Basic ISDN combines the fixed network ISDN and IP technologies (networks 

and terminals) among themselves and with the GSM / UMTS network. 

The coM.sat IP IP Basic ISDN is implemented as two UMTS channels. 

The use of Sierra Wireless Cellular Engines (MC8792V) not only enable voice communication 

but also data transmission and SMS from a PC. The USB interface provides direct access to 

the cellular engines. 

The main features are: 



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SIP-Trunk: 

• 10/100 Full Duplex, Autosensing, Ethernet RJ-45 LAN-Port 

• 10/100 Full Duplex, Autosensing, Ethernet RJ-45 WAN-Port 

• SIPv2, IPv4 Router 

• Supports SIP-Proxy 

• Session Timer, Record-Routing, authentication 

• Compression with different CODECs 

• T.38 Fax, G.711 Fax/Modem-Bypass 

• G.168 Echo suppression 

• Up to 8 parallel voice connections 

SIP-Proxy: 

• 10/100 Full Duplex, Autosensing, Ethernet RJ-45 LAN-Port 

• 10/100 Full Duplex, Autosensing, Ethernet RJ-45 WAN-Port 

• SIPv2, IPv4 Router 

• Supports SIP-Trunk 

• Session Timer, Record-Routing, authentication 

• Compression with different CODECs 

• T.38 Fax, G.711 Fax/Modem-Bypass 

• G.168 Echo suppression 

• Up to 6 parallel voice connections 

WWAN-Connection: 

• WWAN UMTS (Standalone / Data backup) 

• Fallback routing for data connectivity 

ISDN-Connection: 

• NT, TE in P-P or PMP Mode configurable 

• Synchronisation port (TE-Port) 

• S0-Interface, EDSS1-Protocol, Impedance 100Ω 

• S0-Power feed for terminal equipment 

• VPBX 

GSM/UMTS: 

• TS11 Voice in Full Rate and Enhanced Full Rate, DTMF, AMR 

• TS12 Emergency function 

• TS21 SMS in Text and PDU Mode 

• Net-Lock 

• SIM-Lock 

Hardware interfaces: 

• DC-Socket for power supply 

• USB Direct access, Transparent Mode and SMS-Server 

• RJ45 WAN for VoIP-Service and programming 

• RJ45 LAN for VoIP-Services and Programming 

• RJ45 NT port for connection to the ISDN network according to ISO 8877 

• RJ45 TE-Port for Synchronisation or connection to the ISDN network according 

to ISO 8877 

• SMA RF connector for the GSM/UMTS antenna 



Copyright - DIN 34

coM.sat IP Basic ISDN Quick Installation Guide

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