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#472395 07/14/08 04:41 AM
Joined: Aug 2005
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We are in the process of implementing QOS to our network and need to know what ports the Nortel VoIP phones use. Any help would be greatly appreciated.

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#472396 07/15/08 12:21 PM
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Nortel developed there own protocol called Unistim. They have licensed the protocol to a variety of vendors - Spectralink being one of them. It is based off of RFC3054. Nortel's implementation of it uses the following L4 ports.

Ports

* 4100/udp Nortel UNIStim (Unified Networks IP Stimulus), i200x
* 5000/rudp Nortel UNIStim (Unified Networks IP Stimulus), i2002/i2004 on ITG Line
* 5100/rudp Nortel UNIStim (Unified Networks IP Stimulus), ITG Line
* 5105/udp Nortel UNIStim (Unified Networks IP Stimulus) FTP (UFTP)
* 6800/tcp Nortel Unified Manager
* 7000/rudp Nortel UNIStim (Unified Networks IP Stimulus), BCM FP1 VoIP to/from IP Phones

Here is a packet decode if you wish to do further analysis.

https://wiki.wireshark.org/UNISTIM

#472397 07/16/08 07:56 AM
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gcave,
Thank you so much for your help.


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