Released on = December 9, 2005, 1:55 am

Press Release Author = 2N Telekomunikace a. s.

Industry = Telecommunications

Press Release Summary = This guide will show you how to easily configure the
VoiceBlue Enterprise GSM IP gateway as a SIP proxy for routing of outgoing calls to
GSM. The procedure described bellow assumes the use of a SIP proxy integrated in the
VoiceBlue Enterprise GSM gateway. The SIP proxy is a software application whose
function is to process signalling (call establishing and terminating, user and
telephone rights, etc.).

Press Release Body = This guide will show you how to easily configure the VoiceBlue
Enterprise GSM IP gateway as a SIP proxy for routing of outgoing calls to GSM. The
procedure described bellow assumes the use of a SIP proxy integrated in the
VoiceBlue Enterprise GSM gateway. The SIP proxy is a software application whose
function is to process signalling (call establishing and terminating, user and
telephone rights, etc.). Let us consider a network of the structure shown in the
figure below.


After setting the proper gateway IP address, get connected to the VoiceBlue GSM VoIP
gateway by means of the http protocol. Please make sure that you are using the
latest firmware.

Now specify the user rights in the User management bookmark. These rights designate
what each user is allowed to configure and modify. Rights groups are created to
eliminate the need to specify access rights for each user individually. Click on
\'Add group\' in the Groups menu.


The meaning of the rights is as follows:
USERS+LINES+LCR - rights concerning the whole system
USERS - definition of user accounts and groups
LINES - communication line settings
LCR - Least Cost Router configuration

You can create a group and assign a combination of the rights to it.

Define the authentication of the SIP telephone to the integrated SIP proxy and its
accounts for web interface login in the Users menu. For the Add user window see
below.



You can assign the user to one of the existing groups and, besides, set special
rights for this user. The default application is the initial bookmark that is active
at the instant of login.

Afterwards, select the Configuration bookmark and go to \'SIP lines\' in the Devices
item. The SIP lines are defined to ensure communication with other SIP using VoIP
equipment. Now, we are going to register the line to the SIP proxy. Click on \'Add
SIP line\'. The following window appears.


Enter the gateway IP address into the SIP server address field. \'SIP name\' is the
line number for calling, \'Display name\' is the text to be displayed for the called
line. \'Listen port\' represents the UDP port on which the line receives calls. \'User
name\' and \'Password\' are used for SIP proxy registration. Choose the required codecs
by means of the Shift key. Then click on \'Add\' in the right-hand bottom corner.

Afterwards, go to the LCR menu and choose the Routes item. Proceed to \'Add route\' to
define the route to the GSM network.


Enter \'Route name\' and select the GSM modules to be used for GSM routing. You may
select several items by pressing the Ctrl button. In \'Time intervals\' you can
determine the time validity of the routing rule. Finish this window by clicking on
\'Add\' in the right-hand bottom corner.



Now move to the LCR table and press the Add button. Specify the prefixes to be used
for GSM calling in the following window.



Click on \'Next\' to continue.



Here choose the route you have defined in the LCR > Routes menu. Now click on the
Add button to complete this setting.

Finally, proceed to the Services bookmark.



Click on the pencil icon to modify the sip: 0 rule.



\'If prefix\' denotes the start string of the called subscriber number according to
which the rule is selected. \'Strip\' is the number of characters following the \'sip:\'
prefix that are removed from the called number before processing. \'Add line\' is the
string to be inserted in the called number behind the \'sip:\' prefix. \'Do action\'
denotes what shall be done with the call.
To see which equipment units are registered to the SIP proxy, refer to the SIP proxy
> Registrations menu.

From now on you can enjoy your calls to GSM.


Web Site = http://www.2n.cz/news/press_releases/vbe_sippbx.html

Contact Details = Modranska 261
Praha 4
143 01 Czech Republic
sales@2n.cz
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