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faq.html
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<html class="global desktop"><head><meta name="viewport" content="user-scalable=yes,width=device-width,initial-scale=1"><style type="text/css">html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:'';content:none}table{border-collapse:collapse;border-spacing:0}body{-webkit-text-size-adjust:none}</style><style type="text/css">*,*:before,*:after{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box}</style><meta name="viewport" content="initial-scale=1">
<link rel="stylesheet" type="text/css" href="global.css">
<title>Fairwaves</title>
</head>
<body class="homepage">
<div class="wrapper">
<div id="header">
<div class="s1"></div>
<div class="menu">
<a href="index.html" class="home">Home</a>
<a href="faq.html" class="faq">FAQ</a>
<a href="how_to's.html" class="how_to's">How to</a>
</div>
<div class="logo">
<img class="imglogo" alt="" src="logo.png">
</div>
</div>
<div id="content">
<div id="page_faq">
<div class="page_title">FAQ</div>
<div class="box">
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">01</h5>
<div class="s2"></div>
<h2 class="faq">Does the units comes with the complete system to start working immediately?</h2>
<center><p>Yes, you can start from the Network-In-The-Box configuration, everything you need for small isolated network in one unit.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">02</h5>
<div class="s2"></div>
<h2 class="faq">What is included in the shipment?</h2>
<center><p>
<br>
1.Base station with already installed and configured software
<br>
2. Power supply
<br>
3. GPS antenna</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">03</h5>
<div class="s2"></div>
<h2 class="faq">How does affect installation without GPS antenna on the system?</h2>
<center><p>We strongly recommend to use GPS antenna, however it possible to work without it ,but it's may cause the problem of cell phone registration to the network in terms of surrounding GSM networks, cell phone model, temperature. Once the phone has registered to network, GPS does not affect on productivity of the system at all.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">04</h5>
<div class="s2"></div>
<h2 class="faq">How does the system handle handover between MultiBTS systems?</h2>
<center><p>BSC on a separate server. We use intra BSC handover. How to set up, described below in technical chapter.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">05</h5>
<div class="s2"></div>
<h2 class="faq">How is roaming handled?</h2>
<center><p>It depends on the type of core network There are several options to implement and it is better to know your current situation and requirements.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">06</h5>
<div class="s2"></div>
<h2 class="faq">What is your radius coverage?</h2>
<center><p>up to 200 m with 200mW (no external apmlifier),
up to 1-2 km with 1W output power,
up to 10 km with 10W output ,
NOTE: these figures are given as a reference. Coverage area will strongly depend on your local landscape and environment.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">07</h5>
<div class="s2"></div>
<h2 class="faq">Do you have a specific simcards or usual simcards can be used?
</h2>
<center><p>Fairwaves base station could be configured to work with any SIM-cards. However it is impossible to provide subscriber authentication and traffic encryption if you do not know Ki secret key of your SIM-cards. If you operate a normal mobile network with encryption and subscriber authentication,you can set up only open network either get SIM-cards with known Ki keys to set up close network. You can buy a SIM-cards and program them.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">08</h5>
<div class="s2"></div>
<h2 class="faq">What is capacity of the subscriber database?
</h2>
<center><p>A base station with one transceiver are able to handle from 200 subscribers (if you offer your subscribers a flat tariff with free local calls) to 500 (normal mode with tariffs still comfortable for subscribers). For example, with 10 000 subscribers you will need around 20 base stations. Please note this is very rough estimation.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">09</h5>
<div class="s2"></div>
<h2 class="faq">Will the UMTRX work with UMTS?
</h2>
<center><p>UmTRX will be able to work with UMTS, but we don't have a software implementation for that.
</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">10</h5>
<div class="s2"></div>
<h2 class="faq">How do you handle SMS and GPRS in your systems?
</h2>
<center><p> Fairwaves base stations are able to provide basic services: Voice and SMS also Fairwaves provide GPRS, in terms of quality it disabled in production systems to get more capacity for the voice and SMS either that is too slow to use it as data service. We considering to use WiFi instead of GPRS.
</center></p>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">11</h5>
<div class="s2"></div>
<h2 class="faq">Is it possible to connect through the ISUP/SIP-T as a MSC-MSC?
</h2>
<center><p>No, it doesn't implemented yet.
</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">12</h5>
<div class="s2"></div>
<h2 class="faq">Does the SGSN and GGSN are implemented?
</h2>
<center><p>Yes, osmo-sgsn and openggsn. This is not a complete implementation of SGSN and GGSN. For more information refer to <a href="http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS">Osmocom</a> .</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">13</h5>
<div class="s2"></div>
<h2 class="faq"> How to assign different external DIDs to different mobile phones?
</h2>
<center><p>Create multiple gateways and multiple rules in the dialplan. But we're not recommend that for this case. Usually people use SIP trunks, you need just routing appropriate calls to the trunk with a single rule.
</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">14</h5>
<div class="s2"></div>
<h2 class="faq"> How does subscribers pay bills in terms of village service?
</h2>
<center><p>1. express card payment 2. physically bring money to the person who have an access for the enroll payments.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">15</h5>
<div class="s2"></div>
<h2 class="faq"> How does subscribers provision to network, SIM Cards or Phone?
</h2>
<center><p>Sim card. You can program your own sim cards and that's would be a closed network either you can use existed sim, then network would be open.
</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">16</h5>
<div class="s2"></div>
<h2 class="faq"> How is the billing system interconnected with MNO?
</h2>
<center><p>It depend from the architecture but in general: fairwaves billing system can be integrated with MNO through the camel and diametr protocol.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">17</h5>
<div class="s2"></div>
<h2 class="faq"> Is it possible to connect external BTS to the network through A-bis interface?
</h2>
<center><p>We do not support external BTS connection through A-bis interface, because of this architecture is not fault-tolerant from the connection lost. It does not have local calls switching, there is no a simple ways of backhaul optimization, that brings an extra expenses for the village connection through the VSAT.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">18</h5>
<div class="s2"></div>
<h2 class="faq"> Is it possible to collect a segment of independent OpenBTS and OsmoBTS under OpenBSC/SIP controller for the Handover modeling?
</h2>
<center><p>Yes, you need just a two UmTRX</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">19</h5>
<div class="s2"></div>
<h2 class="faq"> Does the SGSN and GGSN are implemented?
</h2>
<center><p>Yes, osmo-sgsn and openggsn. This is not a complete implementation of SGSN and GGSN. For more information refer to <a href="http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS">Osmocom</a>.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">20</h5>
<div class="s2"></div>
<h2 class="faq"> TRX0 frequency spectrum detected but TRX1 does not seem to be transmitting on the specified frequency. what is could be the issue?
</h2>
<center><p>According to the GSM Standard, only TRX0 has to transmit constantly.
Secondary TRX's can transmit only when TRX0 would completely loaded.
So if you want to see transmission on the TRX1 you should either:
<br>
1. have more than 6 active call legs (more than 3 acive calls)
<br>
2. set TRX0 configuration to SDCCH and leave TCH only on the TRX1 and make a call.
<br>
In other case you'll see that the transmission of TRX1 is not
continuous, unless you have all TCH's on TRX1.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">21</h5>
<div class="s2"></div>
<h2 class="faq"> Where is registration of mobile station on a SIP server, what kind of billing options available with UmSITE?
</h2>
<center><p>With the current UmSITE software, a VoIP server does not receive SIP INVITE messages for GSM users, so a BTS system can:
<br>
1. Enable/disable users in the GSM core using a socket API.
<br>
2. Route all calls to a SIP server or a SIP proxy for billing purposes.
<br>
3. Route all SMS to an SMPP server for billing purposes.
<br>
<a href="https://github.com/Rhizomatica/rccn">Here is an example of a system</a> that implements flat tariff plan for calls inside and per-minute for calls outside of the network.
<br>
We can help you do a non-standart configuration on demand and run a commercial network with more UmSITEs, in that case we suggest to discuss a commercial agreement to provide you support and network maintenance for upcharge price.
.</p></center>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">22</h5>
<div class="s2"></div>
<h2 class="faq"> Whether all calls will be charged (inside/outside) ?
</h2>
<center><p> It depends on whether you want to bill local calls or not.</center></p>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">23</h5>
<div class=></div>
<h2 class="faq"> Wouldn't it get a network congestion cause without charge for the internal network calls?
</h2>
<center><p> We're developing advanced options to avoid full network congestion in UmCORE server which will be available as part of the commercial agreement.</center></p>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">24</h5>
<div class=></div>
<h2 class="faq"> Do you have another option of commercial billing for inside and outside calls?
</h2>
<center><p> We can build a billing backend for you as part of the commercial agreement.</center></p>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">25</h5>
<div class=></div>
<h2 class="faq"> How to control/change the process of automatically assigning a number? Where is the source code?
</h2>
<center><p> The code which generates the random number is <a href="http://cgit.osmocom.org/openbsc/tree/openbsc/src/libmsc/db.c?h=fairwaves/master#n1229">here</a>
But we strongly recommend you against modifying the code. We regularly roll-out updated code and you'll be losing your changes.
The recommended way of assigning numbers is by out of band means:
<br>
1. You can create a simple web-portal for users to register at and claim their numbers.
<br>
2. Alternatively you can connect to OsmoNITB through SMPP and implement a special SMS number to claim numbers.
<br>
3. You can also intercept the first subscriber's call and play instruction how to claim the number.
</center></p>
</div>
<div class="grid_4">
<h5 style="text-align: center;" class="font_5">26</h5>
<div class=></div>
<h2 class="faq"> How to send the person welcome Message with their assigned number?
</h2>
<center><p> Currently this is implemented only for the <u>token</u> authentication mode, but this mode it not recommended. It tried to kick users out of the network, which does not behave consistently for different phones. We would recommend to implement this through external means - e.g. by monitoring new user registrations on SMPP socket.
For the reference, code for the <u>token auth</u> located <a href="http://cgit.osmocom.org/openbsc/tree/openbsc/src/libmsc/token_auth.c?h=fairwaves/master">here</a>
</center></p>
</div>
<div>
<div id="footer">
<div class="s1"></div>
<h2 class="font_2">Fairwaves inc 2015</h2>
</div>
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