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Community Member

Cisco Telepresence SX20 with tc7.2.1 outgoing call disconnects

Hello,

 

We are facing an issue after upgrading the firmware of sx20 to tc7.2.1

we are having an setup as follows:

 

ISDNLink (BRI) -->SX20.(tc7.2.1)

 

Earlier as test purpose we tried making calls to mob numbers with additional strings, and call gets connected but now after upgrading call rings for outgoing and incoming but it never gets connected.

 

We are new to this setup so pls help in this

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