Issue with calls between a Polycom and a Cisco 7975.
we are experiencing some troubles with the calls between a Polycom registered to a VCS and a Cisco 7975 registered to a CUCM 8.6. They are in the same LAN and when the Polycom makes a call, it establishes the communication but we can’t hear anything and viceversa.
This case is a bit strange because when the same Polycom calls another phone type (6921, 7942) the call is made without problems, so these details are only with the 7975’s.
The scenario is the following:
Polycom VVX VCS X7.2 ip 192.168.46.150
Cisco 7975 with firmware SCCP75.9-2-1S CUCM 184.108.40.20600-2. Ip. 192.168.46.10
We have the following events in the VCS when the call is made between Polycom ext. 99929 and 7975 ext. 16002.
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