Any legacy PSTN services (such as ISDN) still live after the switch-off will be ceased. It is imperative to move to alternative services before this happens in order to avoid loss of service.
Moving voice calls from ISDN to SIP Services is a tried and tested way of saving money on both trunk rentals and telephone call charges. ISIP ISDN to SIP Converters, allow you to start to enjoy monthly cost ...
Read More
Read More