Switzerland only requires informing the caller, while Germany requires active opt-in consent before recording.

Swiss law (Art. 179quinquies StGB):

• Simply informing the caller is sufficient ("This call may be recorded for quality purposes")
• Applies to "mass business" — orders, reservations, standard inquiries
• The information can even be provided by an automated message

German law (§201 StGB + Art. 6 & 7 GDPR):

• Active opt-in consent is required — the caller must explicitly agree
• Consent must be voluntary, informed, and specific
• Recording without consent is a criminal offense

Tip: The Swiss exception only covers routine mass business. For complaints, complex negotiations, marketing, or profiling, Switzerland also requires active consent — similar to Germany.

Go deeper:

• General Data Protection Regulation (Wikipedia) — the GDPR consent basis underlying the German rule.