JSC «Sibirtelecom» provides services of data transmission basing on the different protocols (Frame Relay, X.25, etc), These technologies allows remote offices of a company to communicate to each other and with its headquarters, The modern network development level gives us opportunity to realize any complicated solutions and build the networks of any topology.

X.25 Network
The customers are provided with the access to the public data transmission packet-switched network under X.25 protocol.

X.25 Network provides the access to the scattered information and mailing systems, data transmission networks. It serves to create the integrated information space in accordance with the international standards providing for the guaranteed delivery of the transmitted information to the addressee. It has superior error-checking capabilities. Due to these factors Õ.25 protocol can be used even at the dirty communication lines. 

Multi-Service Networks
Multi-service networks of «Sibirtelecom» are the networks that allow the subscriber to make use of an unlimited number of various services: from HS Internet access (up to 40 Mbit/s) to organization of the private corporate channels or videoconferencing.

Multi service networks are being used widely at the corporate level due to the growth of share to address company through Internet as far as the new generation of IP solutions is implemented. Moreover private corporate networks are becoming more popular; as in this case the subscriber is given the opportunity to manage it by himself, to create any sophisticated security solutions on the vast territories (within city, region, country, world).

Virtual Private Networks
These data transmission networks based of VPN technology have true VPN capabilities. By means of sharing of network infrastructure among several enterprises, VPN technology allows to realize services being close to the services of the private networks by quality and the key functionalities: security, availability, predictable traffic-carrying capacity, independence to select addresses. The main functionality of VPN is to shield it from the external users.