When the Towers Go Down

Your phone shows full bars but WhatsApp won't connect. You switch to a call; it rings endlessly, then drops. You try again. Nothing. You try your wife, your brother, your mother. Same thing. The cell network is either jammed, shut down, or both.

This isn't hypothetical. Pakistan has experienced multiple government-ordered internet and mobile shutdowns in recent years. When networks go down (whether from overload, a government order, or physical damage), calls won't connect, WhatsApp messages sit on single ticks, and families get cut off from each other.

In an actual strike scenario, the kind that countries in the Middle East have experienced, cell towers can be physically destroyed. No amount of rebooting your phone fixes a tower that isn't there anymore.

This guide is about what happens when your phone stops being useful for communication, and what you should have set up before that happens.

Why networks fail

Understanding why helps you figure out what will still work.

Network overload

This is the most common failure. Everyone tries to call at the same time. Cell towers have a limited number of simultaneous connections; when a crisis hits and a million people all grab their phones, the network chokes.

What still works: SMS sometimes gets through when calls don't. Text messages use far less bandwidth. Try a text before repeated call attempts. WhatsApp messages may queue and deliver later if internet is congested but not fully down.

Government shutdown

Pakistan has some of the most frequent internet and network shutdowns in the world. The government has shut down mobile data, social media, and sometimes entire cellular networks during elections, political protests, military operations, and undefined "security situations."

These shutdowns are typically targeted: mobile data goes first, then social media, then voice calls if things escalate. Fixed broadband (PTCL fibre, Stormfibre) usually stays up longer than mobile networks.

What still works: Landlines (if you still have one; many people do through PTCL). Fixed broadband/WiFi if only mobile data is shut down. FM radio for news.

Physical destruction

In a conflict scenario (airstrikes, missiles, or heavy bombardment), cell towers are either deliberately targeted or caught as collateral damage. A single tower serves thousands of users. When it's gone, so is coverage for that entire area.

What still works: Anything that doesn't depend on cellular infrastructure. Walkie-talkies (direct radio communication). FM radio (broadcast towers are more robust and widely distributed). Satellite phones (expensive, but they work).

Power failure

Cell towers have battery backup, typically 4-8 hours. Extended power outages beyond that and towers start going dark one by one. You'll notice your signal gradually degrading as nearby towers die.

What still works: The same as physical destruction: anything that doesn't need the cell network.

Walkie-talkies: your best backup

A pair of walkie-talkies is the cheapest, most practical communication backup a Pakistani family can own. They don't need cell towers, they don't need the internet, they don't need electricity beyond their own batteries, and the government can't shut them down.

What to buy

Baofeng UV-5R (budget option):

• Rs. 3,000-5,000 per unit on Daraz
• Dual-band (VHF and UHF)
• Rechargeable battery, lasts 12-24 hours depending on usage
• More features and range than consumer radios
• Downside: requires some learning, not immediately intuitive

Motorola Talkabout or equivalent (simple option):

• Rs. 5,000-12,000 per pair
• Push to talk, almost no setup needed
• Runs on AA batteries (huge advantage, as you can stockpile them)
• Simpler, more reliable for families
• Downside: less range than Baofeng

Buy in pairs or sets. A single walkie-talkie is useless. Buy at least 2: one for home, one for whoever is most likely to be out (usually the person who goes to work). Better: buy 3-4 and distribute across family members or neighbours.

Realistic range expectations

Ignore the numbers on the box. Every manufacturer claims 10km, 15km, even 30km range. Those numbers are for open fields with perfect line of sight. In Karachi (concrete buildings, narrow streets, electrical interference from generators and transformers), your real range is:

• Standard handheld (Motorola Talkabout): 0.5-1.5 km in urban Karachi
• Baofeng UV-5R: 1-2 km typical, up to 3 km with clear line of sight
• From a rooftop to a rooftop: Double the above. Height is the single biggest factor in range.

Battery management

Your walkie-talkie is useless with a dead battery. Plan for this:

• Baofeng: Charge fully before storing. Rechargeable Li-ion battery. Keep a spare battery (Rs. 500-1,000 on Daraz). Can charge via USB with the right cable.
• Motorola Talkabout: Uses AA batteries. Keep 2-3 sets of AAs stored with the radios. Lithium AAs (not alkaline) last longer in storage and perform better in heat.
• Conserve battery: Don't leave the radio on 24/7. Agree on check-in times (next section) and turn it on only during those windows. Keeping the radio on standby drains battery slowly; transmitting drains it fast.

Channel planning

If everyone in your neighbourhood buys walkie-talkies and uses the same channel, it becomes unusable. Plan ahead.

Family channel assignment

Pick a channel and a backup channel. Write them down with your rally points and communication tree.

• Primary channel: The one your family uses for regular check-ins. Pick something not on Channel 1 (that's what everyone defaults to). Channel 5, 8, 14: pick something specific.
• Backup channel: If primary is too busy or has interference, switch to this. Everyone needs to know both channels in advance.
• Privacy codes (CTCSS/DCS): Most radios support "privacy codes" (sub-channels that filter out other users on the same frequency). This doesn't actually make your communication private (anyone can still hear you), but it reduces noise from other users. Set the same privacy code on all your family's radios.

Radio etiquette

Walkie-talkie communication is half-duplex; only one person can talk at a time. Bad habits waste battery and create confusion.

• Press the button, wait one second, then talk. The first half-second of transmission often gets clipped. Count "one" in your head before speaking.
• Keep it short. "Home is safe, four people, water for three days. Over." Not a full conversation.
• Say "over" when you're done talking. This tells the other person it's their turn.
• Say "out" when the conversation is finished. This frees the channel.
• Don't hold the button down. Transmitting blocks everyone else on the channel.
• Use names. "Ali for Fatima" before your message, so people know who's talking and who they're talking to.

Check-in protocol

Pre-agree on when to turn on radios and check in. This conserves battery and gives structure.

Suggested schedule:

• First 3 hours of crisis: Check in every hour, on the hour. Turn radio on at :55, listen/transmit until :10. Then off.
• Hours 3-12: Check in every 3 hours (e.g., 9:00, 12:00, 15:00, 18:00, 21:00).
• After 12 hours: Check in every 6 hours (morning and evening, 8:00 and 20:00).

What to communicate during check-in:

1. Who you are and where you are. "Ali at home, Gulshan."
2. How many people are with you. "Four people, all safe."
3. Your status. "We have water for two days, food for four. No injuries."
4. Any changes to plan. "We're staying put" or "We're moving to secondary rally point."
5. Next check-in confirmation. "Next check-in at 15:00. Over and out."

Pre-agreed code phrases (same as in the 30-Minute Window guide, keep consistent):

• "We're moving" = evacuating to rally point
• "We're staying" = sheltering in place
• "We need pickup" = can't move on our own
• "Red" = someone is hurt, need medical
• "Moving to secondary" = primary isn't safe, heading to secondary rally point
• "Going out" = evacuating the city, heading to tertiary

Write these on a card and tape it to your walkie-talkie.

Your phone: still useful

Even when cell networks are down, your phone has uses:

Offline messaging apps

Bridgefy: Creates a mesh network using Bluetooth. Your message hops from phone to phone until it reaches the recipient. Range is limited (roughly 100m between devices) but in a dense neighbourhood, messages can travel surprisingly far. Download it NOW; it doesn't work if you try to download it after the internet goes down.

Briar: Encrypted messaging that works over Bluetooth, WiFi, and Tor. Designed for exactly these situations. Requires both people to have it installed beforehand.

The catch: Both apps require the other person to also have the app installed. Talk to your family and close neighbours about installing one of these before a crisis.

WiFi calling

If mobile data is shut down but your home WiFi (PTCL, Stormfibre) is still working, some phones can make calls and send messages over WiFi. Check your phone settings for "WiFi Calling" and enable it now. Not all carriers support it, but it's worth trying.

Hotspot from fixed broadband

If your home broadband is working, your phone can connect via WiFi and use WhatsApp/Signal over your home internet, even if mobile data is completely shut down. Keep your router on UPS so it survives power cuts for a few hours.

FM radio: a reliable backup

When everything digital fails, analogue radio still works. FM radio stations have broadcast towers that are separate from cell infrastructure, often have generator backup, and the government almost never shuts them down; they're actually used to broadcast emergency information.

What you need

A battery-powered FM radio. Not a phone app; you want a radio with an actual FM receiver. Your phone's FM tuner (if it has one) works too, but uses phone battery.

• Small battery-powered radio: Rs. 500-1,500 at any electronics shop
• Hand-crank radio: Rs. 2,000-4,000 on Daraz. Never needs batteries; crank it for a minute and get 15-30 minutes of play. Some include a torch and USB charger.
• Car radio: Your car's FM radio works as long as the car has battery. Sit in the car, turn the key to accessory mode, listen.

Key frequencies

Keep a card with these frequencies in your grab bag:

• Radio Pakistan: 93.0 FM (Karachi), the official government broadcaster; will carry emergency announcements
• FM 107: News and talk
• City FM 89: Popular Karachi station
• Power 99: News updates

During a major crisis, most FM stations switch to emergency broadcasting: news, government announcements, emergency instructions. If you don't know what's happening and your phone is dead, turn on the radio.

Landlines: worth keeping

If you have a PTCL landline, or your parents or in-laws do, don't disconnect it. Landlines work on a separate infrastructure from mobile networks. During mobile shutdowns, landlines often keep working.

Even if you don't use it daily, keep it active. In a crisis where mobile is down, that landline might be your only voice connection.

Make sure your family knows: "If you can't reach me on mobile, try the landline." Write the number in your grab bag documents.

Communication tree (recap)

This is covered in detail in the 30-Minute Window guide, but here's the quick version:

You have 3 people you call. Each of them has 3 people they call. Within two rounds, 12 people know your status. Within three rounds, the entire extended family is informed.

Your three:

1. Spouse or whoever is at home with kids
2. One family member not in your house
3. One neighbour

Pre-agree:

• Primary communication method: phone call
• If calls fail: SMS
• If SMS fails: walkie-talkie (primary channel)
• If all electronic communication fails: walk to your neighbour's house, send someone to the secondary rally point

Write the full tree on a card. Every family member carries a copy.

Tonight

1. Buy walkie-talkies. One pair minimum. Baofeng UV-5R on Daraz (Rs. 3,000-5,000 each) or Motorola Talkabout (Rs. 5,000-12,000 per pair). Order tonight. Charge them when they arrive.
2. Pick a channel. Not Channel 1. Agree on it with your spouse. Write it on a card.
3. Download Bridgefy or Briar. Both of you. And your nearby family members. Do it now; you can't download it when the internet is gone.
4. Find an FM radio. Check your house; there's probably one somewhere. If not, Rs. 500-1,500 at any electronics shop. Put batteries in it.
5. Enable WiFi calling. Check your phone settings. Turn it on if available.
6. Write a frequency card. Primary walkie-talkie channel, backup channel, FM frequencies for news, your landline number if you have one. Tape it to your walkie-talkie. Put a copy in your grab bag.

Your phone is your primary communication tool, until it's not. The gap between "phone works" and "phone doesn't" is where people panic. Having a backup that doesn't depend on cell towers, the internet, or the government is worth the Rs. 5,000 investment. It might be the only way you hear from your family when it matters most.