TNM IoT

TNM Overview

TNM (Telekom Networks Malawi) is one of the two major mobile operators in Malawi, established in 1995. As of June 2021, it had approximately 4.5 million users and a market share of about 44%, forming a duopoly with Airtel (about 56%). TNM provides voice, SMS, mobile data, and Mpamba mobile payment services. In the first half of 2021, revenue from data services increased by 14% to 15.6 billion kwacha, and Mpamba revenue grew by 54% to over 5 billion kwacha. Net profit increased by 19%, with revenue reaching 43.5 billion kwacha and an EBITDA margin of 39%. TNM surpassed 2 million users in 2012, and its market share rose from 29% to 45% between 2008 and 2012.

For enterprises in Malawi, TNM offers IoT connectivity and Mpamba payment integration, including agriculture and smart cities.

Development History and Milestones

TNM was founded in 1995, one of the first mobile operators in Malawi. In 2008, its market share was 29%, and in 2012 it surpassed 2 million users, with market share rising to 45%. In the 2010s, it launched Mpamba mobile payments and expanded data services. By 2021, users reached 4.5 million, with strong growth in data and Mpamba, and net profit increased by 19%. Malawi has a population of about 20 million, with TNM and Airtel forming a duopoly dominating the market.

Core Technical Capabilities

IoT Applications

TNM offers IoT connectivity and Mpamba integration in Malawi. 4G covers the main cities and is used for agriculture and smart cities. Farming is the main part of the economy, so agricultural IoT is a practical use. Mpamba plus IoT can carry payments for smart vending and shared equipment.

Competitive Advantages

• Duopoly: Shares the market with Airtel, at about 44%
• Mpamba: Mobile-payment revenue grew sharply
• Profit: EBITDA margin of 39%
• Data: Data revenue is still growing

Wireless Reality inside Malawi's Duopoly

The radio gap between the southern commercial cities and the northern lake shore

TNM's commercial technologies are GSM, WCDMA, and LTE. Fifth generation is not written as an IoT bearer that can be purchased. Commercial districts in Blantyre and Lilongwe can use LTE at 1800 MHz as the primary layer. Cells in Mzuzu and in towns along Lake Malawi are thinner, so the device must be ready to fall back to 3G or to GSM at 900/1800 MHz. Malawi has a narrower set of spectrum than South Africa. Use TNM's current activation notes for the exact frequencies. Do not put South African Band 40 or European Band 20 on the lock list. The country is mainly two mobile networks, TNM and Airtel. A TNM machine SIM will not switch to the other network inside a coverage hole unless the contract states domestic roaming and that roaming is open to the IoT product. At an install point on the lake or on a steep slope, antenna height often matters more than swapping the SIM.

Low-volume farm terminals and the mobile wallet use separate channels

Mpamba is TNM's mobile-payment brand. It fits agent points and checkout. It does not provide the APN for a sensor. Connections for agriculture and for a small fleet have low monthly volume, scattered sites, and nobody on site who will log into a portal to change a parameter. Choose an enterprise data product, and write down the reporting interval, the retry after a failure, and the rule that suspends the SIM when the balance runs out. A personal prepaid plan that carries only data for a long time, with no voice, may be treated as an idle SIM. If an alarm SMS must reach an on-duty phone, confirm the SMSC and the character encoding on their own. Do not carry a service message on the payment-SMS channel. Coexistence with GPRS/EDGE is still required. One batch of older terminals will send data only on 2G. A new gateway should prefer LTE and keep fallback in the firmware, rather than turning 2G off across the whole network at once.

Regulatory approval, prepaid habits, and power

Malawi's communications regulator, MACRA, handles device type approval, and a SIM needs identity registration. Trackers and gateways imported in bulk should carry the approval documents in the shipping file. Outside the commercial cities, power is unreliable. The base station and the device lose power together. Software should not promote every offline event into an emergency ticket. The method of access authentication follows the APN on the account form. Some enterprise accounts need a username and a password. Others need only the APN name. Bills are in local kwacha. A payer outside the country should agree the bill title in advance. Testing should cover at least LTE in central Blantyre, fallback on one north-south highway, and the real farm or warehouse where the device will be installed. If no fixed IP is opened in writing, design the platform so the address can change and an inbound connection cannot be reached.

Catch-up uploads on a steep lake shore, and the bill title

LTE in the commercial district of Blantyre does not describe the shore of Lake Malawi or the steep north. The pass criterion for those install points should be written as follows: after the antenna is raised, the device can attach, it may land on 3G or GSM, and the service counter can catch up within the agreed time. Do not require the same delay as in the city. Do not put photos and video on a link that has fallen back to EDGE. Counters and on-off states fit that fallback. A Mpamba collection code and a machine-SIM account are two sets of records. Do not mix them in a field demonstration. Keep the regulatory documents, the identity registration, and the username from the account form in one folder, so a new maintainer does not have to guess the authentication again. Pick a town midway on the north-south highway and record which technology was in use. If the contract has no domestic roaming, a strong signal from the other network does not count as TNM coverage. The validity period and the idle-suspension rule, whether prepaid or postpaid, follow the account form. Do not borrow the number-retention days used in another country. Confirm the kwacha bill title before shipment, so an activated SIM is not suspended because the paying entity does not match. A power cut takes the base station and the terminal down together. After power returns, send the cached records first, then decide whether the SIM is at fault. If an older terminal can send data only after falling back to circuit-switched service, keep the antenna away from a corrugated-iron eave, and write in the install record whether it was on GSM or WCDMA at the time. Do not have a new gateway upload photos on that stretch of road. When a maintainer replaces the SIM, update the SIM number on the platform at the same time, so commands are not still sent to the old SIM. The lake shore is humid. Seals and feeder connectors are field conditions. Check them again before the rainy season. Do not open a ticket as if they were network parameters. The busy hour in the northern tea areas is not the same as in the southern commercial city. Offset the reporting time to the local base-station load, rather than using one clock hour for the whole country.

---

Related Links

Back to the operator index