What to know before touching anything
- No change is needed on the Türk Telekom modem or in the line's settings. The app on each device does the work.
- In January 2016 Avea, TTNET and Türk Telekom were announced as moving under one brand, so a line sold as TTNET is handled the same way here.
- Fibre and VDSL both carry the tunnel, and the line's own speed stays the ceiling.
- The link is not tied to your flat, so the same one can be used away from home too.
- A modem restart, or a change in the address of your line, does not call for a new link.
Why the modem is not in charge
A tunnel runs on the device, so the modem only passes packets along, as it always did. It sees an encrypted stream to a server abroad and how much data goes through, but not the pages inside. The device list in its admin page shows which devices are connected, not which sites they visit through the tunnel.
TTNET is worth knowing as a name, because an older contract or setup guide may still use it. In January 2016 it was announced that Avea, TTNET and Türk Telekom would be brought under one brand, so a guide written for a TTNET modem now points to a line under the Türk Telekom name.
Where delay and slowness come from at home
A tunnel adds a detour: your traffic leaves the flat, reaches a server in Sofia, Athens, Bucharest, Munich or Rotterdam, and carries on from there. The detour costs a little delay, which you notice on video calls and in games more than on a download. Fibre and VDSL set the top speed of the line, and VDSL in particular depends on how far the flat is from the street cabinet, so a tunnel cannot lift a modest line. If an evening is slow, test the plain line before blaming the app.
Home-line habits that get mistaken for tunnel trouble
- The Wi-Fi band. The longer-range band reaches the back bedroom but is more crowded and slower, while the shorter-range band is quicker near the modem. Check which one the laptop joined.
- A second router or a mesh kit behind the modem, which can add a second layer of address translation. If the app connects on mobile data but not at home, plug the laptop straight into the modem as a test.
- Content filtering on the modem's own menu. If you switched it on yourself, turn it off for a test; if a landlord or a parent set it up, leave it alone and ask them first.
- A test site showing an address that looks like your home line, which can mean the client is wrapping only one of the two address families. Look for an IPv6 option in the client.
- The modem restarting overnight, which drops the tunnel until the app reconnects.
One app per device, or something at the modem
The service puts no limit on devices, so each phone and laptop in the flat can run its own app on the same link. That is the easy route and the one to start with. A television or a games console that cannot run a client is the case for a tunnel at the router, and the page on routers in the devices section goes through it, including why a provider's modem usually cannot take the job. Whether it is worth the bother is a question about those screens, not about the Türk Telekom line.
Work laptops, contracts and the landlord
Two things sit above this page. A work laptop with a company VPN may not take a second tunnel at the same time, and your employer decides what runs on it, so ask before installing anything. And a line in your landlord's name, or a modem that belongs to the building, comes with rules of its own.
The subscriber contract for the line sets conditions of its own for the modem and for what may be attached to it. Those differ from contract to contract and get revised, and the law where you live sits on top of them, so reading both is your part. The business behind this page sells the Iskele link, so do not rely on our say-so: try each claim on your own line during the 10 free days, before you pay anything. The terms are on the home page and in the bot.
Questions
Do I have to change anything in the Türk Telekom modem?
Nothing on the modem needs to change. The tunnel is set up in the app on each device, so its settings can stay as they are. The one exception is a second router or a content filter sitting in the path: if the app will not connect at home but works on mobile data, look there first, and if someone else set the filter up, ask them before you change it.
My contract still says TTNET. Is that line any different?
It behaves the same way. In January 2016 it was announced that Avea, TTNET and Türk Telekom would go under one brand, so the name on an older contract is a leftover of that change, and nothing about the tunnel depends on it. What matters is whether the line is fibre or VDSL and how your flat is wired, not the name on the contract.
The modem restarted overnight. Do I need a new link?
A restart does not touch the link, which belongs to your subscription and not to the modem or its address. When the line comes back the app reconnects on its own, or you tap connect once. If it does not, switch the app off and on, then try another city.
Will a video call from a VDSL flat get worse with the tunnel on?
It can, a little. The detour to a server in Europe adds delay, and VDSL speed already depends on the distance to the cabinet. Calls tolerate delay better than fast games do. Try a call with the tunnel and without it, and keep it on only where it helps.
My smart TV has no app for this. What are my options at home?
Check whether the TV runs a system that can install a client; Android TV can. If it cannot, the options are a tunnel at a router you control, or leaving that one screen outside the tunnel. A provider's modem usually cannot do the first, so it often means adding a second router.
Can the company laptop keep its work VPN and this one together?
Ask your IT department before trying. Two tunnels on one laptop can fight over the network settings, and an employer may not allow extra software on a managed machine. If you are allowed, switch one off before using the other and see which order works.
Does fibre make any difference compared with VDSL?
Only through the line, not through the tunnel. Fibre generally leaves more headroom, so the extra distance to a European server matters less for downloads, while VDSL on a long cabinet run leaves less and the tunnel cannot create speed. Try both on your own line if you can.
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