Is the 25 pin to 25 pin cable that connects a MultiVOIP unit to a Multitech Modem a straight through cable? If not, do you have the pin outs?

Here is the 25 to 25 pin modem cable pinout:

1---------1
2---------3
3---------2
4---------5
5---------4
6---------20
7---------7
8---------20
20-------6
20-------8