Communication Technologies: PAC Rostell

A Rostell software product for creating distributed fault-tolerant enterprise IP telephony solutions.

• Based on SIP stack implemented by Rostell team
• Created by a Russian company without the participation of foreign capital
• Projects can be implemented on software and/or hardware solutions depending on the Client's requirements

Application

Geographically Distributed Solutions

• Unified Corporate Telephone Network
• Internal number capacity of the business unit and uniform rules for the entire network

Replacing Legacy PBXs in Institutions

• Connect multiple analog lines via external gateways
• Transparent to employees transition to new technologies
• Space and resources savings for ongoing maintenance

Fault tolerant solution

• Application-level clustering
• No call interruption in case of disconnection of any component
• Single cluster for hardware and software solutions

Enterprise Primary IP PBX Protection Solution

Tasks to be solved

• Corporate telephony
• Single number capacity, dialing rules
• Independent number capacity and policies within each department
• Transparent expansion of system capacity
• Conference calls with the possibility of voting and recording
• Recording conversations
• Roaming
• Simple centralized management

Main functions

• All features of modern PBXs
• Roaming
• Forking
• Two-step routing
• CallerID management for ABCde numbering
• IVR scenarios
• Call Recording, CDR
• Building Distributed Contact Centers

Fault tolerance

Backup and redundancy of computing resources

• Active protection at 2 ~ 4 IP-PBXs with switching time up to 5 seconds and possible break of part of established voice connections
• Redundancy and fault tolerance at 4 + IP PBX with maximum voice interruption time of 2 seconds

Autonomy of each site as a whole

• Health is independent of the availability of external channels and other sites
• Communication between sites is possible over external trunks in the event of a fall of the corporate network
• Registration and service of phones is possible on any site (roaming and/or moving the telephone domain between sites)

The global configuration is stored in the master site

• It is a point of relevance at the start of each site
• May not be available during system operation

Main components of Rostell

Site-set of computing resources with high reliability and sufficient bandwidth among themselves.

• Hardware solutions TK-3050, TK-3250
• Client Servers (physical or virtual)

Role-set of functions to perform certain tasks within Rostell. Each server performs the installed Roles. Rostell fault tolerance is implemented by:

• fault tolerance of each Role separately
• orchestration of dynamic links between servers

The telephone domain combines users, SIP accounts, numbers, and other system objects. Each site can have many domains. Telephone domains form a hierarchy.

Equipment

• EAC certification

TK-2120 - creation of a professional contact center for up to 120 operators

TK-3050 - fault-tolerant distributed telephone network core

TK-3250 - a device that provides subscriber service

• Industrial components only, 1U 19' form factor
• TK-3250 -up to 250 simultaneous conversations. Combining multiple TK-3250 on a single site proportionally increases the allowable load
• 1 year warranty from implementation, expandable to 10 years
• Average service life - at least 9 years

Contact Center (TK-2120)

• Professional contact center for up to 120 operators
• Operator conversation script on dialog forms
• Service of incoming calls and outgoing calls
• A convenient statistics and reporting system for the manager
• Multiple queues, call distribution based on attendant qualification
• Integrations with any CRM systems
• Control over each switching and each operator

Licensing

• Internal voice channels
• Contact Center Operators

Support and Warranty

Equipment Warranty

• First year - free of charge (counted from the date of project implementation, but not more than 18 months from the date of shipment)
• Second year -20% of equipment cost
• Third year -25% of equipment cost
• Fourth and every subsequent year -30% of equipment cost

Updates

• Free of charge within 12 months from the date of project implementation
• 20% per year starting in the second year (in case of continuity)

Technical support

• The first line is carried out by the integrator
• Second and Third Line - Rostell Support Service