We have (had) two identical Asterisk servers for our outbound call center. Both were running Linux 2.4 kernel, Asterisk 1.0.7, Libpri 1.0.7 and Zaptel 1.2.1. Each server has a TE410P card with two PRIs. Last week, we upgraded one of them to Asterisk 1.2.4, Zaptel 1.2.3, Libpri 1.2.2. The agents on the new system suddenly started complaining that calls were cutting in/out, and that customers were having problems hearing them. We then downgraded zaptel back to 1.2.1, but no improvements. If I move the agents over to the old 1.0.7 server, they have no issues. Has anyone had similar issues? Would downgrading Libpri help anything? Thanks, Adam The contents of this email message and any attachments are confidential and are intended solely for addressee. The information may also be legally privileged. This transmission is sent in trust, for the sole purpose of delivery to the intended recipient. If you have received this transmission in error, any use, reproduction or dissemination of this transmission is strictly prohibited. If you are not the intended recipient, please immediately notify the sender by reply email and delete this message and its attachments, if any.