Have Your VoLTE Encryption Call with Normal SIM Cards
We provide the VoLTE encryption call solution without any support or detection from carriers, avoiding interception from the carrier’s network. The solution features 3 types of products: KMS, U-key, and VoLTE encrypted phone. You only need normal SIM cards to make encrypted calls, directly using the carrier’s VoLTE service without deploying any server.
Ultra Secure Design
Industry-leading IBE E2EE technology, leading ECC 1024bit secret key, completely offline and closed private key generator, key injection is completed through encrypted QR code, and the whole process does not require online operation. Support encryption algorithm customization.
IBE E2EE Technology
Identity based encryption with leading key strength: 1024-bit private key elliptic curve, more secure than ECC256.
KMS Offline Hardening
The entire process of KMS key generation and registration is offline, with physical ports closed. No network security threat.
U-key Authentication
Dual authentication by U-key and password to ensure the legitimacy of the operation.
Multiple Administrators
Through department configuration, physical-level encryption isolation of departments is achieved.
Algorithm Customized
We can provide professional service and SDK for symmetric encryption algorithms customization.
Carrier-Transparent
Session keys are carried via the user plane (RTP Payload) without modifying SIP signaling, completely transparent to the carrier’s core network and IMS.
A Secure and Efficient E2EE Solution
Offline Design
All private key generation and transmission are done locally offline to avoid network security risks. The KMS does not participate in encrypted sessions and requires no online presence.
ECC 1024-bit Key
1024-bit private key of elliptic curve based on IETF standards (RFC 6507/6508/6509) and 3GPP TS 33.180, using SAKKE encryption and ECCSI signature.
The KMS — Private Key Generator
KMS is a dedicated private key generation device designed for end-to-end encryption (E2EE), enabling users to quickly and securely generate private keys with encrypted QR codes. Only 2 parameters are required: enter your domain and phone number, and your encryption key is ready in a second.
One KMS supports up to 50,000 terminals. It comes in a ruggedized PAD form factor with three-proof protection and stores the encrypted root private key via U-Key.
2 Types of Deployment Options:
- Standard — Lightweight & convenient, works on normal tablet devices, easy to deploy and ready to use.
- KMS Pro (Kiosk) — Maximum security with physical port lockdown (USB, WiFi, Bluetooth disabled), system-level MDM Kiosk mode, and U-key dual authentication.
KMS
Key Management System
PAD Form Factor | 50,000 Terminals | $30,000
The Encrypted Phones
The only VoLTE encryption terminals on the market without reliance on carrier support. Custom modem encrypts voice data before the operator’s VoLTE standard process. Due to IBE E2EE technology, the success rate and efficiency of encryption establishment are very high.
F70
Daily Use | $760
Lightweight 5G smartphone. 6.81″ FHD display, 48MP+8MP camera, 8G+256G/128G, 5000mAh, Android 15, NFC, dual-band Wi-Fi, side fingerprint. Also known as ST1.
D51
Industrial / Outdoor | $920
Light three-proof 5G rugged explosion-proof phone. IP68, Ex ib IIC T4 Gb, 6.67″ 2400×1080, 48MP+8MP, 8G+256G/128G, Android 13, 4300mAh, -20~50°C, independent BeiDou, PTT.
S90
Mission Critical | $1,280
5G secure phone with PTT and privacy button. Designed for mission-critical scenarios requiring instant secure communication and push-to-talk functionality.
Encrypted Phone Call Flow
The voice stream is encrypted before sending. Even if it is obtained by the carrier or others, it cannot be cracked. Only User-A and User-B can decrypt the voice.
User A
Carrier VoLTE Network
(Encrypted RTP)
User B
Session keys are carried via RTP Payload (user plane), not modifying SIP signaling — completely transparent to the carrier’s core network and IMS.
* Learn the Risks of Your Call (VoLTE)
Learn how secure are your VoLTE calls:
deepsec.net/docs/Slides/2017/How_secure_are_your_VoLTE_and_VoWiFi_Calls_Sreepriya_Chalakkal.pdfLearn about ReVoLTE Attack:
radix-security.com/research/revolte-attackLearn More About Our Solutions
Explore detailed solution information and pricing on our website. For additional inquiries or customized solutions, please don’t hesitate to contact us.
Our value is “Encrypted, Private, Yours” — to ensure your privacy without interception.