ProCall mobility services service specifications

Interoperability is only ensured with estos products such as ProCall Enterprise. No other applications have been certified for ProCall mobility services.

General

estos operates a STUN/TURN service for its products in the OVH cloud (https://www.ovhcloud.com/en/) in Europe on the basis of coturn (https://github.com/coturn/coturn).

Other services provided via ProCall mobility services are proprietary and specific to estos products, such as ensuring push messages for smartphone apps or the VPN-less operation supported from ProCall 8 Enterprise as a proxy between the ProCall clients and the ProCall Enterprise UCServer.

Network topology

Network addresses and port ranges are documented in https://support.estos.de/en/procall-enterprise/hostnamen-und-ip-adressen-der-online-dienste-fuer-firewall-konfiguration under UCConnect/UCTurn. These are updated here when the configuration is changed.

STUN/TURN performance features

STUN specifications

• RFC 3489 - "classic" STUN
• RFC 5389 - base "new" STUN specs
• RFC 5769 - test vectors for STUN protocol testing
• RFC 5780 - NAT behavior discovery support
• RFC 7443 - ALPN support for STUN & TURN
• RFC 7635 - oAuth third-party TURN/STUN authorization

TURN specifications

• RFC 5766 - base TURN specs
• RFC 6062 - TCP relaying TURN extension
• RFC 6156 - IPv6 extension for TURN
• RFC 7443 - ALPN support for STUN & TURN
• RFC 7635 - oAuth third-party TURN/STUN authorization
• DTLS support (http://tools.ietf.org/html/draft-petithuguenin-tram-turn-dtls-00)
• Mobile ICE (MICE) support (http://tools.ietf.org/html/draft-wing-tram-turn-mobility-02)
• TURN REST API (http://tools.ietf.org/html/draft-uberti-behave-turn-rest-00)
• Origin field in TURN (Multi-tenant TURN Server) (https://tools.ietf.org/html/draft-ietf-tram-stun-origin-06)
• TURN Bandwidth draft specs (http://tools.ietf.org/html/draft-thomson-tram-turn-bandwidth-01)
• TURN-bis (with dual allocation) draft specs (http://tools.ietf.org/html/draft-ietf-tram-turnbis-04)

ICE and relevant specifications

• RFC 5245 - ICE
• RFC 5768 – ICE–SIP
• RFC 6336 – ICE–IANA Registry
• RFC 6544 – ICE–TCP
• RFC 5928 - TURN Resolution Mechanism

Client-to-TURN protocol support

• UDP (per RFC 5766)
• TCP (per RFC 5766 and RFC 6062)
• TLS (per RFC 5766 and RFC 6062): including TLS1.3; ECDHE is supported.
• DTLS1.0 and DTLS1.2 (http://tools.ietf.org/html/draft-petithuguenin-tram-turn-dtls-00)
• SCTP (experimental implementation).

Relay Protocols

• UDP (per RFC 5766)
• TCP (per RFC 6062)

Template for tenders

If you are interested in a template for tenders, please contact us at https://www.estos.de/kontakt

ProCall Enterprise service specifications

• Recommended for "VPN-less": https://support.estos.de/de/procall-enterprise/procall-fuer-windows-einfach-ueber-das-internet-vpn-less-anbinden 
• Recommended for ProCall App for Microsoft Teams: https://support.estos.de/de/procall-enterprise/procall-app-fuer-microsoft-teams/inbetriebnahme-der-procall-app-fuer-microsoft-teams
• Recommenced for ProCall Mobile: https://support.estos.de/de/procall-enterprise/procall-mobile-die-mobile-apps