I've been told that some LEC's use DSO-DP channel units back-to-back, to connect one channel bank to another when they have a voice-only circuit that needs to go through a "tandem point" office.
Now, theorietically, this should work, but I can't shake the feeling that DSO-DP's shouldn't be used for tandem service, probably because I've never seen it done before.
Any T-1 engineers out there? Is there a reason why DSO-DP CU's aren't the best choice for tandem service, i.e., that a 4ETO or TDM unit would work better? I understand that DSO-DP's won't carry signalling from one T-1 bank to another, but are they adequate for voice-only circuits?
Inquiring minds want to know. ;-)
Bill