TELEX for UNIX system

[root at mprvaxa.UUCP]

We would like to put our TELEX machine on the VAX11/780 UNIX 4.2 system.
Would anyone tell me where I can get the software and hardware to put
the TELEX line interface to the ttys.    

I understand UNITECH has a software package called S-TELEX, but they don't
sell it anymore (we have to buy it direct from UK, no thank you).  Is there
any other similar software available on the market?

William Luk
Microtel Pacific Research
8999 Nelson Way
Burnaby, BC
Canada  V5A 4B5
TEL: (604)- 294-1471 EXT.5240