IP Telephony and Phones

Issues A user is having problems where when people call him, sometimes he receives busy signals, but his phone rings, he picks up and there is silence.The same user said that at certain specific times of the day he has been getting busy signals. Sc...

Hello:I am working on an integration for a client in China that has an E1 PRI with China Telecom.  Getting technical information from those guys is next to impossible...a task made more difficult because I do not speak Mandarin.  Anyway, I am having ...

HiI have configured CUE with couple voice dial numbers. Is there possibility to see on telephone that calling if from specific number?For example, somebody choise in CUE number XX and I'm seeing this number on the ringing phone where the calling is t...

Experts, Can any one help me with SIP toplogy. Any good example. I need clear idea on the device connection, From SP side where it is terminating in our environment. What configuration we do in router. Is SBC i used in every cisco sip topology. L...

Hello All, Can anybody explain me why we need MTP for RSVP? And why we use codec path-through command in MTP configuration for RSVP? Best Regards Bahlul

Dear All,   Myself aware Jabber for windows version 10.6 dosn't supports "Check Point VPN"   "10.6 release notes: Check Point VPN Cisco Jabber for Windows doesn't currently support Check Point VPN."   Could you please anyone advise, same in version 1...

Have a 2911 (IOS 15.2.4) with an SRE 900. trying to ftp CUE pkg and get errors%SM_INSTALL-6-INST_FAIL: SM1/0 is reset due to Error encountered while downloading payload(s) .I have tried 2 different pkg (8.6.7 and 8.6.11) and 2 diffferent FTP servers ...

Hello everyone, Someone knows how to check if a SIP trunk is registered in CUCM with any command cli or in RTMT? I have configured one today but the calls doesn´t work with "service unavailable" message. Thanks Anna.

I have a problem with AA over SIP trunk. My SIP provider use g711alaw over SIP trunk.My configuration isvoice class codec 1 codec preference 1 g711ulaw codec preference 2 g711alawvoice class sip-profiles 13 request ACK sdp-header Audio-Attribute modi...