Welcome to the help center

In the help center you can find a FAQ section as well as comprehensive user guides for our software.


In case you have questions which requires personal assistance then you are more than welcome to contact our support team who will deal with your enquiry from Monday to Friday from 9 AM to 4 PM CET.

General information

Yes, we can offer static IP on SIMs.

In the Control Center of SIMSpot there is a SMS feature, which allows you to write directly to a specific SIM card with adjustable send settings.

Yes, from the advanced HLR section on a specific SIM from the SIM tab.

In SIMSpot you will find your SIM portfolio where you can browse through your SIM portfolio and manage SIM status.

In SIMSpot  you will find your SIM portfolio where you can filter your cards, allowing you to handle a huge amount of cards. By adding attributes to the specific SIMs you can filter when viewing or browsing the SIM portfolio.

Many M2M solutions do not have a display installed to show you why your SIM is not in a network.


If you activated the SIM card after your device is turned on you will have to do a hard reset on your modem to force the network attach. Often this is done by switching off all power from the device 1 or 2 minutes.


Try plug the SIM card into a mobile phone to see the status of the network. Remember to change the APN settings on the mobile phone.

About M2M

The home location register (HLR) is a central database that contains details of each mobile phone subscriber that is authorized to use the GSM core network. There can be several logical, and physical, HLRs per public land mobile network (PLMN), though one international mobile subscriber identity (IMSI)/MSISDN pair can be associated with only one logical HLR (which can span several physical nodes) at a time.

The HLRs store details of every SIM card issued by the mobile phone operator. Each SIM has a unique identifier called an IMSI which is the primary key to each HLR record.

The next important items of data associated with the SIM are the MSISDNs, which are the telephone numbers used by mobile phones to make and receive calls. The primary MSISDN is the number used for making and receiving voice calls and SMS, but it is possible for a SIM to have other secondary MSISDNs associated with it for fax and data calls. Each MSISDN is also a primary key to the HLR record. The HLR data is stored for as long as a subscriber remains with the mobile phone operator.

Examples of other data stored in the HLR against an IMSI record are:

GSM services that the subscriber has requested or been given.

GPRS settings to allow the subscriber to access packet services.

Current location of subscriber (VLR and serving GPRS support node/SGSN).

Call divert settings applicable for each associated MSISDN.

The HLR is a system which directly receives and processes MAP transactions and messages from elements in the GSM network, for example, the location update messages received as mobile phones roam around.




In wireless telecommunications, roaming is a general term that refers to the extending of connectivity service in a location that is different from the home location where the service was registered. Roaming ensures that the wireless device keeps connected to the network, without losing the connection. The term “roaming” originates from the GSM sphere; the term “roaming” can also be applied to the CDMA technology. Traditional GSM Roaming is defined as the ability for a cellular device to automatically send and receive data, or access other services, including home data services, when travelling outside the geographical coverage area of the home network, by means of using a visited network. This can be done by using a communication terminal or else just by using the subscriber identity in the visited network. Roaming is technically supported by mobility management, authentication, authorization and billing procedures.

GPRS, General Packet Radio Services, is a platform for mobile data networking services in GSM networks. GPRS means that you can transfer data to mobile devices at speeds between 30 and 100 kilobits per second and the device can be constantly connected to GPRS. GPRS is sometimes described as “2.5G”, something between the second and third generation mobile networks.

Enhanced Data rates for GSM Evolution (EDGE) (also known as Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC), or Enhanced Data rates for Global Evolution) is a backward-compatible digital mobile phone technology that allows improved data transmission rates, as an extension on top of standard GSM. EDGE is considered a 3G radio technology and is part of ITU’s 3G definition.

In third generation mobile telephony, mobile devices provide services with data rates up to 2 Mbps for stationary systems (with HSDPA, it can go up to 14.4 Mbps). Mobile systems can reach up to 384 kbps. 1G was the analog mobile telephony, while the 2G was digital, 3G uses a 5 MHz channel width as a carrier.

4G is the fourth generation mobile telephony, an umbrella of standards under development beyond 3G. Much of it is to get mobile systems to fuse together with other networks such as Wi-Fi and WiMAX.

UMTS, Universal Mobile Telecommunications System is a standard for 3G mobile networks, making it possible to send the packet data as text, video and multimedia with a theoretical transfer rate up to 2 megabits per second. Each user cannot obtain a higher data rate than 384 kbps second downstream.

HSDPA, High-Speed Downlink Packet Access, or Turbo-3G, which it is often called, is a further development of UMTS, which provides higher throughput from the network to the user. At first, the transfer speed in practice around 500 Kilobytes per second with a theoretical top speed of 10-20 megabits per second.

Machine to Machine (M2M) refers to technologies that allow both wireless and wired systems to communicate with other devices of the same ability. This is accomplished through the use of telemetry, which is the language machines use when in communication with each other. Such communication was originally accomplished by having a remote network of machines relay information back to a central hub for analysis, which would then be rerouted into a system like a personal computer.


However, modern M2M communication has expanded beyond a one-to-one connection and changed into a system of networks that transmits data to personal appliances. The expansion of wireless networks across the world has made it far easier for M2M communication to take place and has lessened the amount of power and time necessary for information to be communicated between machines. These networks also allow an array of new business opportunities and connections between consumers and producers in terms of the products being sold.


Unfortunately the new Internet Explorer 9 has troubles handling our platform. Solve this issue by using any other browser. We personally recommend Firefox which can be downloaded at www.firefox.com

OPCOs stands for Operator code and is a short term for each operator worldwide. It can be used to analyze which network zones your SIM cards are using and improve your services. The two last letters are a shortcut of the country that the SIM card is located in.

The problem is because the user’s browser does not have the right CA certificate in their browsers, so it does not trust the server’s certificate.

Most browsers like Firefox also have the option to add exception for this check, so after adding exception first time, next access will not display this warning.


Most browsers come along with a list of well known Certification Authorities, and explicitly do not trust any other. For all our purposes, including employee personal certificates, VPNs etc. we use our own Certification Authority.


If needed, we can provide a certificate from server, which can be imported into the browser in order to access our Control Center. Afterwards the browser will trust the connection, and this warning will not be shown.

There are many circumstances where a PDP context will be closed by a local network, which may have come into play.

• Lack of radio access

• Roaming network initiated close (i.e. the network that you are roaming on is using a shorter timeout)

• Application closed access (Hang up)

Many M2M solutions do not have a display installed to show you why your SIM is not in a network.


If you activated the SIM card after your device is turned on you will have to do a hard reset on your modem to force the network attach. Often this is done by switching off all power from the device 1 or 2 minutes.


Try plug the SIM card into a mobile phone to see the status of the network. Remember to change the APN settings on the mobile phone.

When exporting from reports to XLS and converting columns to numbers please do follow.

1 – Mark the desired figures. 2 – Click the and select Convert to Number

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