Voice Systems and Accessories - Small Business

Upgrade your communication system with our Voice Systems and Accessories, perfect for small businesses.
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Hello there, I am new with UC 500. I have set up UC 540W with AA option and forwarding incoming calls to operator extension with no caller action . We use PBX FXO ports only. I have issue with outside caller. Once outside caller calls, and if no one ...

h.luo by Level 1
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We use a lot of Cisco SPA 303 / SPA 504 phones with SIP TLS / sRTP.Now we have very big problems - if on our PBX system failure or failer on network connection from phones to PBX  - this phones suspend. In this mode phones can't react on actions from...