Replace Cisco AS5300 with MT

Looking for some advice. I work for an ISP in PNG and we have been using MT for some time and yes it is great. We are in the process of upgrading some of our routers and I would like to replace two Cisco AS5300 routers which are used solely for Digital Dial connectivity to MT.

These routers presently run 4 x E1’s to Telikom exchange.

Is there an appliance available from MT that has similar or more port density for E1’s (plus fastethernet). I know this could be done via a PC with associated PCI adapters but I would prefer a appliance based device.

Thanks in advance.
Dave