Does the Cat B35 work on Telekom?

Q: Does the Cat B35 work on Telekom?

Works with caveats. Calls and texts can fall back to 2G. Telekom plans to switch 2G off completely by 30 June 2028. We haven't found confirmation that 4G Calling works on Telekom. 4G data should work (shared bands: 1, 3, 7, 8, 20).

Last checked 23 Oct 20266 sourcesWorked out from published specs

Yes, for now.

Works with caveats

Calls and texts can fall back to 2G. Telekom plans to switch 2G off completely by 30 June 2028. We haven't found confirmation that 4G Calling works on Telekom. 4G data should work (shared bands: 1, 3, 7, 8, 20).

Expect it to work, but read the switch-off dates below. That's where the catch is.

We worked this out from the phone's published bands and Telekom's own published network facts (see How we check). Nobody has confirmed it for this exact pairing yet.

Telekom (Germany)

3G: Switched off in 2021
2G: On until 30 June 2028, when Telekom plans to switch it off completely

Cat B35

2G: GSM 850 / 900 / 1800 / 1900
3G: Not published or not checked yet
4G bands: 1, 3, 7, 8, 20
4G Calling: unknown – No network or maker VoLTE confirmation found.

The same applies to networks that run on Telekom: congstar. Smaller networks sometimes handle 4G Calling differently, so check with them too.

Other networks in Germany

Vodafone Works with caveats
O2 (Telefónica) Works with caveats
1&1 Works with caveats

Everything about the Cat B35 · All phones on Telekom · Dumbphones that work in Germany

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Sources

How we decide: our method.