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Cisco Network Solutions For The Telco DCN: Telephone Switch Environments
White Papers This document describes Cisco network solutions for transporting data between a telephone switch and the Operations Support Systems (OSSs) in a telco data communications network (DCN).
[January 1, 1970, 0:59]
Competitive Public Switched Telephone Network (PSTN) Wide-Area Network (WAN) Access Using Signaling System 7 (SS7)
White Papers Using conventional Internet access equipment, service providers may access signaling system seven (SS7) in the public switched telephone network (PSTN) for a cost-effective means of providing Internet services.
[January 1, 1970, 0:59]
Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows
White Papers This paper contains best current practice examples of Session Initiation Protocol (SIP) call flows showing interworking with the Public Switched Telephone Network (PSTN). PSTN calls are illustrated using global telephone numbers from the PSTN and...
[January 1, 1970, 0:59]
Private Telephone Network
White Papers PTN organizations require their own telephone equipment and must dedicate employees (or hire contractors) to manage the network processes. The PBX switch is Private Telephone Networks’ (PTNs’) primary telephony equipment.
[January 1, 1970, 0:59]
Security Along The Path Through GPRS Towards 3G Mobile Telephone Network Data Services
White Papers Companies must think in terms of end-to-end security so that the risk of network infiltration by an unauthorized party is kept to a minimum from all access points to the GPRS network. This paper examines the technology and infrastructure that...
[January 1, 1970, 0:59]
Major Highway Developer Deploys RAD's TDMoIP Products To Achieve Reliable And Ethernet-Ready Emergency Telephone Network
White Papers An ATM switch enables transmission of Ethernet over the ATM network, thus ensuring QoS. CityLink Melbourne Limited wanted to deliver emergency voice services over an Ethernet enabled ATM backbone while preparing for migration to a Gigabit Ethernet...
[July 10, 2008, 0:35]
Technical Paper: Is Network Telephony Affordable?
White Papers Network telephone solutions are Ethernet-based and simpler than traditional systems. Whereas conventional phone systems require a dedicating wiring system throughout your facility, network telephony merges your telephone services with your LAN...
[January 1, 1970, 0:59]
The Interworking Of Voiceband Fax And Data Modems With Network Echo Cancellers
White Papers The Public Switched Telephone Network (PSTN) uses both 4-wire circuits and 2-wire circuits to carry full duplex voice circuits. The 2-wire circuits tend to be used in the local loop portion of the network, which is the connection between the end...
[January 1, 1970, 0:59]
VoIP In Demand At M&S
News At present, the retailer has an IP-based WAN for data, and a separate network for telephone calls - both currently operated by Cable & Wireless (C&W). Marks and Spencer is planning to shift to a VoIP telephone service across its UK operations.
[May 19, 2005, 10:45]
Measuring Performance And Quality Of Packet Voice Systems
White Papers Similar to the public switched telephone network, the call types might be voice, fax or modem and to be received reliably the transporting IP network has to provide a sufficient quality of service and prioritization.
[January 1, 1970, 0:59]
How To Plan To Keep Communications Open After Disaster Strikes
White Papers Experience has taught us after every major earthquake that the public telephone network will be congested. Both the increased volumes caused by people attempting to reach their loved ones and controls which the local telephone companies and...
[January 1, 1970, 0:59]
The Promise Of ADSL
White Papers Beginning with the advent of the T-carrier in 1962, the telephone network has evolved from an all-analog environment to a virtually all-digital network, starting with the interoffice trunks, continuing through the switches, and working outward...
[January 1, 1970, 0:59]
Introduction To ISDN - North America
White Papers The PSTN (Public Switched Telephone Network) provides analog telephone services to customers; the PSTN (Public Switched Telephone Network) provides packet services to customers. POTS (Plain Old Telephone Service) analog service, packet service...
[January 1, 1970, 0:59]
Businesses Hit By BT Fire
News A massive fire that has hit BT's telephone network is affecting more than 130,000 homes and businesses in the Manchester area. This mile-long tunnel carries 44 cables, each containing 24 optical fibres, and connects two of Manchester's largest...
[March 29, 2004, 17:00]
Designing ISDN Internetworks
White Papers The Public Switched Telephone Network (PSTN) has been transformed into an Integrated Systems Digital Network (ISDN). Previous to ISDN availability, data connectivity over the Public Switched Telephone Network (PSTN) was via Plain Old Telephone...
[January 1, 1970, 0:59]
Integrated Services Digital Network (ISDN)
White Papers Integrated Services Digital Network (ISDN) is comprised of digital telephony and data-transport services offered by regional telephone carriers. ISDN involves the digitalization of the telephone network, which permits voice, data, text, graphics...
[January 1, 1970, 0:59]
Why Firewalls Aren't Enough
White Papers The router is the IP equivalent of the early PBX on the telephone network - simply matching addresses to allow access. With only simple address-to-address filtering possible, the router offers the same filtering as trying to stop telephone...
[January 1, 1970, 0:59]
Integrate VoIP With Your Existing Network: Planning Considerations
White Papers Learn the critical issues to consider when planning to implement VoIP technology with your existing network infrastructure and legacy telephone equipment. This download takes a macroscopic look at how VoIP technology integrates with existing...
[January 1, 1970, 0:59]
Break-up Calls Leave BT Unmoved
News BT has brushed off claims that it should be broken up to prevent it dominating Broadband Britain through its ownership of the UK's local telephone network. Back in February, Cable & Wireless told a parliamentary select committee that Britain would...
[November 4, 2002, 12:48]
Mapping Of Integrated Services Digital Network (ISDN) User Part (ISUP) Overlap Signalling To The Session Initiation Protocol (SIP)
White Papers This mechanism might be implemented when using SIP in an environment where part of the call involves interworking with the Public Switched Telephone Network (PSTN). En-bloc signalling consists of sending the complete telephone number of the callee...
[January 1, 1970, 0:59]
