URGENT - Replacing Cisco 1841 with DSU/CSU cards with Sonicwalls TZ200

We have a point-to-point tunnel between two locations from ATT, it's a T1. We would like to replace the two Cisco 1841 with Sonicwalls TZ200/100. Will the Sonicwalls be able to handle this? The Cisco 1841 use the special Serial DSU/CSU cards and I believe they do the clocking things to establish the connection. Here are the current parts of the configs for both Cisco routers for on both ends

interface Serial0/0/0
 ip address 71.6.xx.xx 255.255.255.248
 ip helper-address 10.10.20.13
 service-module t1 timeslots 1-24

interface Serial0/0/0
 ip address 71.6.x.x 255.255.255.248
 ip helper-address 10.10.20.13
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
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piotrmikula108Asked:
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amatson78Sr. Security EngineerCommented:
Those specific models do not support T1 connections but it is not true that "SonicWALLs" do not support them. Enterprise models such as the 2400MX does in fact support T1/E1 connections with modules:

http://www.sonicwall.com/us/products/NSA_2400MX.html#tab=Modules

Warmest Regards,
Alan
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crouthamelaCommented:
Sonicwalls do not support serial, so in order to eliminate the Cisco device the ISP would need to terminate your connection with Ethernet.
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piotrmikula108Author Commented:
thanks for the clarification
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