Orbtalk have a range of SIP trunk products that work with the Vegastream Vega 50
The Vega 50 6x4 enables enterprises and service providers to connect sites with a legacy of mixed analog and digital applications to the IP network. The Vega 50 6x4 connects a range of legacy telephony equipment, including PBX's, ISDN telephones, ISDN, analog phones and the PSTN to IP networks.
The Vega 50 6x4 supports up to 24 analog ports, up to 16 basic rate ISDN channels on 8 interfaces or a mixture of port types and capacities.
The Vega 50 6x4 is factory configured in a number of different configurations, other configurations are available to special order. The Vega 50 4 FXO is an available standard configuration with 4 FXO ports derived from the Vega 50 6x4.