HWIC-1CE1T1-PRI vs WIC-1B-S/T-V3

I ha ve to create a link between x sites, clients have a cisco 1841 with a wic-1B-S/T-V3 and are connect with the provider in isdn.
In the prinsipal site i’ve a cisco 2811 with a HWIC-1CE1T1-PRI.
I’ve create the controller in E1 mode but i don’t have any experience on this module because before we were connected only with WIC-1B-S/T-V3.
Is someone have an idea to connect x sites in isdn with a site in E1 ?