What SMS activation is
SMS activation is the process of receiving a verification code for a supported registration or login workflow. See also the glossary and FAQ.
Narayana CYou service guide
SMS activation and virtual numbers
Read about SMS activation, OTP verification codes, virtual numbers, acceptable use and account safety.
OTP and verification codes
OTP codes are time-sensitive. They should be used only by the account owner and never shared with another person.
Virtual numbers
A virtual number can receive messages for a specific verification flow when supported by the destination service and the use case is allowed. See also the glossary and FAQ.
Acceptable use
Narayana CYou information is for lawful, authorized verification. It must not be used for fraud, abuse, evasion, harassment or impersonation.
Account safety
Keep login credentials private, use strong passwords, monitor balance and contact support if an activation flow behaves unexpectedly. See also the glossary and FAQ.
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Narayana CYou telecom services
Explore Narayana CYou services for SIP, VoIP, internet calls, SMS sending, eSIM internet, SMS activation, secure calls and voice effects.
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Narayana CYou prepaid pricing and balance
Narayana CYou uses prepaid telecom balance with free registration, login access and top-up from 1 EUR.
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Narayana CYou support center
Find support links, account help, troubleshooting routes and telecom terminology for Narayana CYou users.
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Narayana CYou telecom blog
Read Narayana CYou articles about SIP, VoIP, internet calls, SMS delivery, SMS activation, eSIM, SRTP and voice changer basics.
Open guideQuick FAQ
What is an OTP?
An OTP is a one-time password or verification code, usually valid only for a short period.
Can I share verification codes?
No. Codes should be used only by the account owner in the intended flow.
Are all services supported?
No, support depends on destination service policy, routing and acceptable use.
Internal portal paths
home services SIP / VoIP internet calls SMS eSIM SMS activation FAQ glossary blog tags support
Narayana CYou
Connect calling, messaging and data in one prepaid account
Start with free registration, return to login whenever you need your account, or open support if a routing, SMS, eSIM or balance question needs help.