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Editorial
As this is the first edition of TELES Newsletter, we would be very pleased to hear from any of you with suggestions for improvement, any aspects of TELES product line you would particularly like to see covered, or any other suggestions for articles and insights into all things telecommunications – in short, please let us know what you think! Best regards, Thomas Haydn TELES Product Marketing Director |
Editorial
Innovation
Commercial benefits to be gained from TELES Interconnection Border Control Function
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At the forefront of communications convergence developments, TELES has announced the release of a new function for its Class 4 Media Gateway Controller, the
Interconnection Border Control Function (I-BCF). I-BCF will be of interest to existing customers with TELES C4 NGN Softswitch solution because they can upgrade
their existing Media Gateway Controller and Media Gateway to SBC interconnection functionality which allows IP-to-IP peering including full network topology hiding. |
 Implementing I-BCF on a Media Gateway Controller bridges the changeover to IP-to-IP peering |
Using I-BCF functionality with a C4 Softswitch instead of a stand-alone Session Border Controller means that customers have the advantage of a single billing source and routing device, and also benefit from the lower overall complexity and manageability of a network - whilst significantly reducing OPEX. Additionally, combining I-BCF with a media gateway allows for 100% of all voice traffic to be transcoded without any impact on overall system performance.
Existing scenario: Voice traffic can bypass carrier’s media gateway controller
Implementation of I-BCF to MGC and I-BGF to media gateway insure carrier retention of voice flow
Feature Highlights:
- IP-to-IP peering by using Media Gateways
- Control of the media stream of IP-IP calls via H.248
- Network topology hiding
- 100% transcoding
- Single source for billing records
- Overload protection and avoidance of malicious traffic (SIP)
- H.323, SIP, SIP-I/-T support
- Single routing device reduces OPEX
Technology 1
TELES VoIPBOX BRI
Due to rapid growth and innovation in next generation network communications, many enterprises have found themselves stranded with an ISDN PBX which has not depreciated in value significantly enough to justify its replacement. The installation and implementation costs of an ISDN PBX represent a substantial investment, so it is no surprise that many CFOs balk at the prospect of having to ditch their existing system for an upgrade.As an alternative to replacing the entire ISDN PBX architecture, TELES, offers the VoIPBOX BRI. With the implementation of the VoIPBOX BRI, enterprises can retain their incumbent PBX infrastructure whilst migrating to full VoIP functionality. The benefits of this are obvious: A fast return on investment, no change to existing telephony infrastructure required, advanced Least Cost Routing (LCR) functionality, remote survivability, and emergency breakout.
There are three main scenarios for utilizing the benefits of the VoIPBOX BRI:
Extend your TDM-PBX with the power of VoIP
Suitable for home workers and employees who are on the road, the VoIPBOX BRI can be connected to your enterprise’s PBX via ISDN enabling you to receive external VoIP calls and also to establish calls via your own PBX where IP connectivity is available. What this means to your home workers/mobile employees is that they can use their internet enabled devices to dial-in directly to your PBX, where calls are then converted into TDM format and can be received normally on extension phones. This results in enormous savings in calls, both domestic and international.
Benefits:
- Office DDI
- Complete integration of part- or full-time home workers into the company’s communication infrastructure
- No change to end user habits
- LCR & LCR 2nd generation
- Free calls in multi-site environment & local break out calls
- Centralized control over all company telecom users
Within a multi-site PBX branch network, where PBX systems within your enterprise are separated physically or geographically, the VoIPBOX BRI can utilize its Least Cost Routing (LCR) functionality to route calls via the internet to separate branch PBXs directly, eliminating the necessity to route calls via carriers and enabling free calls via VoIP as well as local break out calls.
Benefits:
- No expensive changes to existing communication hardware and configuration
- No change to end user habits
- LCR & LCR 2nd generation
- Free calls in multi-site environment & local break out calls
- Survivability
In this scenario, the necessity of routing calls via ISDN can be negated if your service provider is equipped with a softswitch. IP access can also be leveraged for Voice and doesn’t require a second point of access (contract) for ISDN lines, resulting in cost savings and the potential for a single contract with one carrier. In addition, with SIP Trunking, the full range of TELES VoIPBOX BRI features can be utilized in the same way as the scenarios described above.
As an added bonus, if your carrier is equipped with TELES next generation network (NGN) technology, the VoIPBOX BRI can then take advantage of the features and benefits available to a full end-to-end solution, including:
- Zero-touch configuration of the boxes using the TELES NGN Softswitch
- Smooth transition from ISDN to VoIP and then to a fully-managed hosted PBX service
- Transparent mapping of ISDN to SS7 via VoIP with zero information loss
- Enhanced ISDN features such as “Advice of Charge”, “Overlap Dialing” and Call Deflection/Forwarding
The TELES VoIPBOX BRI represents a highly effective solution to enterprises’ VoIP and telecommunications requirements. Easy to install and user-friendly, the VoIPBOX BRI can be integrated into a number of different telecommunications scenarios. The VoIPBOX BRI will have an immediate impact in any organization by reducing costs considerably, allowing a swift return on its reasonable purchase price – all thanks to its advanced LCR functionality.
If you are looking for a robust, flexible, and feature-rich solution to your company’s communications requirements, the TELES VoIPBOX BRI is the answer.
Case Study
freenet’s migration from TDM to VoIP
In 2007, TELES was awarded one of the largest scale NGN projects of its kind – the migration of German provider freenet’s existing TDM architecture to an NGN backbone. The TELES solution was designed to build a bridge to freenet’s existing VoIP services so that DSL-based VoIP-subscribers can be integrated and all legacy services can be incorporated into a single, standard-based NGN architecture.The implementation of the TELES NGN solution enabled freenet’s legacy networks to be seamlessly migrated to VoIP-based NGNs. The solution now provides full international SS7 variant support and interoperability with other major vendor media gateways. TELES Class 4 Softswitch cluster technology provides freenet and its customers with five-nines availability, geographically distributed redundancy, support for up to 10 million busy hour call attempts, an advanced and programmable call routing engine, and any-to-any protocol interworking. In addition to its cost-effectiveness and scalability, the Softswitch can be remotely managed, configured, and deployed.
In Spring 2009, the migration from TDM to VoIP was completed, allowing conventional TDM fixed-line telephone users to take advantage of Class 4 NGN “call-by-call” and “pre-selection” applications with a scalable, integrated RTP announcement server for pre-, mid-, and post-call announcements. The replacement of freenet’s existing system with NGN backbone also means a reduced carbon footprint thanks to lower power requirements and much improved QoS. Also, less space is required to house the hardware, resulting in a substantial reduction in costs, and centralized maintenance.
The completion of the project was well received by freenet, with CTO Stephan Esch announcing: "The TELES solution built a bridge to our existing VoIP services and now we have been able to integrate our DSL-based VoIP-subscribers and all legacy services into a single, standard-based NGN architecture."
The significance of this project, in times of financial crisis where cost-consciousness is everything, is now really making an impression thanks to the flexibility of the network solution. TELES NGN solution has enabled freenet to meet customer requirements quickly and effectively. We at TELES are proud to have been able to implement and complete this project for freenet, and we are convinced that freenet will now be very well equipped with our solution to meet all future market challenges.
CLASS 4 NGN Scenario
- Call-by-Call
- Pre-selection
- International and national SS7 variants available
- Deutsche Telekom AG certification
- Scalable RTP server for pre-, mid-, and post-call announcements
Proven interoperability to major vendor MGWs
Technology 2
Integrated Class 4 Solution in 1U chassis
Fully scalable, complete TELES solution containing Softswitch, Media Gateway, and Signaling Gateway contained in a single, convenient package.The Class 4-in-a-Box contains a Softswitch, Media Gateway, and Signaling Gateway, a complete and compact version of existing hardware and software which is now housed within a single 1U chassis. It supports all Class 4 Softswitch features, VoIP protocols, TDM interfaces, and comes complete with a GUI-based Element Management System (EMS).
It is ideal for entry level service and VoIP providers who are looking for a cost-effective solution, and also for application vendors who require PSTN connectivity using SS7 – typically for call centers. The C4-in-a-Box is a solution that will also interest OEM vendors who are looking for a product to complete their low-end portfolio.
The solution is fully scalable including full software scalability. Starting from 2E1s it can be scaled upwards reusing hardware and software which means that it can be applied in wholesale environments or for PSTN breakout for Class 5 applications. A unique feature of the Class 4-in-a-Box solution is that it is available in a redundant configuration guaranteeing uptime, and can be deployed in both distributed and centralized architectures.
- Full C4 Softswitch capabilities
- Entry level solution starting from 60
- concurrent calls
- Supports up to 180.000 BHCC
- Supports up to 960 concurrent calls
- Advanced and programmable
- call routing engine
- Any-to-any protocol interworking
- IP-to-IP peering
- Controls media gateways with H.248
- Up to 8 Media Gateways in a
- Distributed architecture
- Full software scalability
Inside TELES
Shaping service to meet customer requirements fast
We know how important it is to our customers to receive fast and efficient support throughout the entire lifecycle of TELES products. This is why TELES Customer Service has undergone a series of restructuring improvements designed to meet the demands of customers around the globe swiftly and effectively.After listening to customer feedback, we realized that providing a Single Point of Contact (SPOC) whilst pooling specialist knowledge to overcome the “technology split” which divides the TELES product portfolio would be a big step towards meeting customer preferences.
To enable TELES to rapidly categorize, diagnose, and resolve service requests, a two-tiered service system has been introduced. Designed to focus expertise where it is most needed whilst providing an effective blanket for dealing with a wide variety of requirements, the system is structured along lines of expertise.
The two tiers of support are:
- Technical Assistance Centers (TAC) In this team, every member appointed for a certain customer or group of customers is responsible for supporting all TELES products installed in this domain.
- Technical Expert Centers (TEC) Team members are appointed to support a specific technology segment for all TELES customers.
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