Access gateway management system

An access gateway management system for use in providing synchronization for Line Access Gateways (LAGs) in a VoIP network by means of legacy synchronization signals, said legacy synchronization system derived from the circuit-switched network (PSTN) and supplying T1-based synchronization signal, said access gateway management system comprising:

• a controller communicating with the LAG and VoIP network;
• a synchronization adapter responsive to the controller interfacing to legacy synchronization signal;
• and
• a clock hold-over means responsive to the controller providing a stable timing source;
• whereupon controller adapts and transmits timing information over the VoIP network to subtended LAGs, wherein the clock hold-over means comprises an oscillator trained to the legacy synchronization signal, wherein the clock hold-over means receives a recovered signal from the synchronization adapter and passes the timing source to a synchronization distribution circuit.

An access gateway management system for use in adapting alarm information from Line Access Gateways (LAGs) in a VoIP network by means of legacy alarm signals, said legacy alarm system interfacing to local alarm means and alarm telemetry systems, said access gateway management system comprising:

• a controller communicating with the LAG and VoIP network;
• a legacy alarm interface responsive to the controller whereupon alarm information received from the subtended LAGs over the VoIP network is adapted and communicated to the legacy alarm systems;
• and
• a clock hold-over means responsive to the controller providing a stable timing source;
• whereupon the controller adapts and transmits timing information over the VoIP network to subtended LAGs, wherein the clock hold-over means comprises an oscillator trained to the legacy synchronization signal, wherein the clock hold-over means receives a recovered signal from the synchronization adapter and passes the timing source to a synchronization distribution circuit.