IP Telephony and Phones

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In My voice gateway, i am observing flapping in isdn in only few seconds, i checked with Service provider they informed me to set threshold to ignore that flapping. can anyone helpme out.     073159:Nov 16 13:52:24.608 IST:%ISDN-6-LAYER2DOWN: Layer 2...

byrappa by Level 1
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Hello    I have a 20 years old machine using a phone voice over VOIP on ATA122 working fine but can´t send a MULTITONE signal (DMT) over the ATA so can´t work 100%. I tried G.711 some fax or modem option but nothing. ¿could you please help me? This t...

Hello, On Cisco CP-8851 when my manager intercoms me I pick up the phone to talk to him. However, I tend to forget that I have to press the intercom button (actively clicking a picking up button). Basically, I want to the intercom to work like a phon...