[Serusers] Standalone selfcontained ISDN to IP/SIP network device

[Chris]

Good-day fellow ser-ers,
Please does anyone know of a :
    Standalone (self-contained)  ISDN BRI network device
    i.e. ISDN one side, IP Network (RJ45) other side 
    handling call receive and origination using SIP
    2 channel + 8 MSN DN support
I had in mind something like the grandstream 488 but ISDN rather than POTS,
and not a PCI card or PC peripheral requiring a host PC.

Thanks
Chris


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