<p>New in 2019 is the <ahref="cavelink.html">Cavelink system</a> which communicates between topcamp and a station in a cave. The topcamp end has a SIM which means that it can receive and send text messages.
than starting from scratch. Also if we fail to renew we have to get a new phone number. This means that every expoer has to update the entires in their own phones. This is unsafe as these phones are the primary means of communication in case of emergency.
<p>You will also need to renew the SIM card in the cavelink system. Either do it online (being very sure that you have the right phone number) or take it out of the cavelink and put it into a phone. Renew as below and then replace the SIM in the cavelink system.
<p>"Renewal" is just a matter of buying another €10 or €20 credit.</p>
<p>We also need to renew the SIM card used in the cavelink GSM system (new in 2019).
<p>If you need to buy more credits for a phone the simplest way is to buy it online using a credit card.
<p>The next simplest is to buy a "B.Free" A1 top-up ("bon") at the Post Office (closes 1200-1400 for lunch) and to use a webpage to credit it to the phone SIM.
<h4>Adding credit online using credit card</h4>
<p> Go to this page <ahref="https://www.a1.net/internet/mobiles-internet/wertkarten-tarife/guthaben-aufladen/s/wertkarte-guthaben">https://www.a1.net/internet/mobiles-internet/wertkarten-tarife/guthaben-aufladen/s/wertkarte-guthaben</a><br>
and select the link "<ahref="https://www.onlineaufladen.at/a1-shop/produkt/a1">Online aufladen</a>" in the second row of boxes.
<p>The page that links gets you to has fields to type in your phone number and to select which type of credit card you will use. Now be extremely careful: if you make a mistake in the phone number you will be paying for credit to <i>someone else's phone</i> and there is no way to recover from this. Be sure to enter your email address in the box as the only receipt you get will be in an email and you will need that to reclaim the cost from expo.
<p>Then you get a standard credit card payment form and if that all works you will get a message:
<pre>
Vielen Dank! Ihre Bezahlung wurde erfolgreich durchgeführt!
Die Aufladung Ihrer angegebenen Rufnummer wurde erfolgreich durchgeführt!
</pre>
and then receive an email.
<p>Now double-check that it worked by calling <b>*101#</b> and check that the credit on the phone has increased. The credit update is almost instant.
<h4>Buying a top-up "bon"</h4>
<p>When you buy a top-up "bon" at the post office they'll give you a printed receipt with the code to key in. See
In the second section headed "2. Guthaben aufladen" there is a list of options, select the one that says "Online aufladen", it will expand to a line of text and a link which says "<ahref="https://eps.a1telekom.at/bfreeBon/">Zur Aufladung ›</a>"
<p>This page has fields to type in your phone number and the credit code. Now be extremely careful: if you make a mistake in the phone number you will be paying for credit to <i>someone else's phone</i> and there is no way to recover from this.
<p>If it all works you will get a red tick and "Die Aufladung Ihres B.free Guthaben wird in Kürze durchgeführt" which means you have been successful.
<h4>Adding credit using a "bon" with an automated phone call</h4>
