Glossary

Travel eSIM terms

Short definitions so checkout and install feel less mysterious.

APN

APN (Access Point Name) settings tell the phone how to reach a carrier’s data network. Most modern travel eSIMs configure APN automatically when the profile installs. Manual APN edits are rarely needed and can break connectivity if mistyped. If data will not connect after enabling the eSIM, first confirm the correct line is selected for mobile data, roaming for that line is on, and airplane mode was toggled. Only then check vendor docs for a required APN string. Simbo install guides focus on enabling the line and data roaming rather than obscure APN menus. Contact WhatsApp support with your order number before changing advanced carrier settings.

Dual SIM

Dual-SIM phones can keep two lines active — typically one physical SIM and one eSIM, or two eSIMs on newer models. Travelers use this to keep a home number for SMS while a travel eSIM supplies data. Set the travel eSIM as the mobile data line and disable data roaming on the home line to avoid surprise charges. Voice and SMS defaults can stay on the home SIM if you want. Simbo plans assume many customers run dual-SIM this way. If your phone only holds one eSIM and no physical SIM, you can still use a travel eSIM for data and rely on apps for messaging.

eSIM

An eSIM (embedded SIM) is a digital SIM profile your phone downloads and stores. Instead of inserting a plastic card, you install a travel plan over Wi‑Fi, then enable the line when you need mobile data abroad. Compatible phones list “Add eSIM” in Cellular or Mobile Network settings. Travel eSIMs are prepaid: you choose destination or region, data size, and validity, pay in a currency you understand, and receive a QR or install link. Dual-SIM devices can keep your home number for SMS while the eSIM handles data. Always confirm the phone is carrier-unlocked before purchase. With Simbo, plans show ILS pricing, hotspot notes when relevant, and WhatsApp support if activation stalls. Install at home on stable Wi‑Fi, leave the line off until arrival so validity starts when you need it, and use the device checker if you are unsure about your model.

Hotspot / tethering

Hotspot (tethering) shares your phone’s mobile data with a laptop, tablet, or another phone. Some travel eSIM plans allow it freely; others restrict or count hotspot toward a smaller allowance. Always read the plan label before you rely on tethering for work. On iPhone and Android, enable Personal Hotspot after the eSIM line is active and set as the mobile data line. Prefer 4G/LTE if 5G is unstable on a new network. Close unused tethers to stretch a daily fair-use bucket. Simbo marks hotspot-relevant plans where the catalog provides that signal. If you must share internet with kids’ devices, pick a plan size with margin and keep a top-up path ready.

IMEI

IMEI is a unique device identity number used by networks and manufacturers. You can find it in phone settings or by dialing *#06#. Carriers and eSIM vendors may ask for IMEI when troubleshooting locks, blacklists, or install failures. IMEI alone does not prove eSIM support — model and carrier lock status matter more. Use Simbo’s device checker and Settings → Cellular to confirm “Add eSIM” exists. Never post your full IMEI publicly. Share it only over support chat when asked to diagnose a specific order.

Roaming

Roaming means your home carrier’s SIM connects through a foreign partner network. Billing is often per day, per MB, or under a fair-use cap that throttles quickly. Business plans sometimes include roaming; consumer prepaid lines often do not. Travelers switch to a local or travel eSIM to control cost and speed. You keep your home SIM for SMS or authentication while data goes through the eSIM. Check whether your carrier locks the phone before buying any eSIM. Simbo packages replace open-ended roaming with prepaid ILS prices for a destination or region. Compare the total trip cost — not just the first day — and confirm hotspot rules if you will share data with a laptop.