IP Telephony - NBX
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2 v3001 with ip phones locking up

phone2010
Occasional Contributor

2 v3001 with ip phones locking up

We have two NBX V3001's running R6.5.22p3 not running sip.MPLS between them. New Cisco 2901 routers were installed by the new carrier at each site replacing Cisco 5510. We have 3 VPN connections off each site for remote teleworkers. Now remote phones will set up call but will freeze during internal calls only since cutover. PRI calls in and out work fine to remote phones from both sites. Has anyone seen this before?

thanks for the help