Recent content by satcom

Has anyone experience of echoes and successful echo cancellation on Meridian 1 Echanges linked by Tieline trunks over satellite? Any observations will be helpful? Thanks Satcom

Just what i needed. - Thanks

Thanks for that - it may all become clear - eventually! Satcom

I have a computer based upon the M729 motherboard. PCChips website no longer seems to support this - has anyone got the documentation available in PDF format? - or another!

pansophic Thanks for some sensible dialog, you are confirming my findings to a large degree, the big issue appears to be "can I force the PABXs at each side of the trunk to adopt a common protocol", both MF or both DTMF or whatever. There are some aging systems here, even the R1...

pansophic Thnks for that, I have already seen the reference, but also pleased with your response as it helps me formulate a clearer question or 2: a) yes I understand that R1 and R2 are basically incompatible at several levels. b) Several manufacturers make translation equipment at the E1 T1...

I am trying to find pdf or other info about the HNS Telephony earth station equipment to identify interface problems. Sources, Links, Docs would all help me size the difficulties I am having with trunk connectivity.

Further information. E&M type 5 at both exchanges, 4 wire E&M (7 or 8 wires in all). The question is really over the transition from E & M signalling to in-band tone signalling as the call progresses. CCITT R1 and R2 have differing MF tone definitions. If the connection can be completed with E &...

Sorting out E&M analog trunk connection between PABX equipment is proving problematical. Particularly in respect of R1 and R2 signalling systems compatibility. Does anyone have useful experience of this?