[VoiceOps] Large SIGTRAN rate increases

[Mike Johnston]

We are also facing a large cost increase for SS7, specifically for the 
ISUP portion.

One of the frustrating parts, for us, is that we only need ISUP for 
connectivity with an RBOC, that has indicated that they want to do TDM 
trunking _only_ (more or less) forever.  And F-Links is not something 
they are willing to do.  But, they /can/ sell us an A-Link set.

(In addition to the RBOC, we still have TDM with another neighboring 
telco.  We are working on converting that SIP.  Even if we weren't going 
to convert it to SIP, I bet if I asked that telco to do an F-Link with 
me, that would respond with, "Yeah sure, which T1(s) should we put it on?")
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