Anton, we have a couple of these installs with Telmex in the southeast and no issues at the moment. Wanpipe: V.3.5.10 Dahdi-Lunix: V 2.2.1.1 Asterisk: V 1.6.2.6 OpenR2: V 1.3.0 Regards Sebastian On 16/04/2010 09:20 a.m., Anton Krall wrote: > So nobody has had any problems with their Telmex E1s? No ³unkown² r2 > protocol errors? > > > >