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Skinny, MGCP protocol details description wanted

Hello all!

We have Call manager, Unity, vg248 and phones in our ip telephony solution. I need to open ports on ip telephone equipment so I need all protocols details used in ip telephony architecture.

Dont refer me to Safe, I need a real description to be able to open only the good port and port range. That if we had all protocols details we wouldn`t had problem with the SQL virus

thanks

Ch

2 REPLIES
Silver

Re: Skinny, MGCP protocol details description wanted

I think that this is what you are looking for:

H.248 is an ITU Recommendation that defines "Gateway Control Protocol." H.248 is the result of a joint collaboration between the ITU and the Internet Engineering Task Force (IETF). It is also referred to as IETF RFC 2885 (Megaco), which defines a centralized architecture for creating multimedia applications, including VoIP. In many ways, H.248 builds on and extends MGCP.

H.323 is an ITU Recommendation that defines "packet-based multimedia communications systems." In other words, H.323 defines a distributed architecture for creating multimedia applications, including VoIP.

IETF refers to the Internet Engineering Task Force (http://www.ietf.org/), a community of engineers that seeks to determine how the Internet and Internet protocols work, as well as to define the prominent standards.

ITU is the International Telecommunication Union (http://www.itu.int/home/index.html), an international organization within the United Nations System (http://www.unsystem.org/) where governments and the private sector coordinate global telecom networks and services.

Megaco, also known as IETF RFC 2885 and ITU Recommendation H.248, defines a centralized architecture for creating multimedia applications, including VoIP.

Media Gateway Control Protocol (MGCP), also known as IETF RFC 2705, defines a centralized architecture for creating multimedia applications, including VoIP.

Real-Time Transport Protocol (RTP), also known as IETF RFC 1889, defines a transport protocol for real-time applications. Specifically, RTP provides the transport to carry the audio/media portion of VoIP communication. RTP is used by all the VoIP signaling protocols.

Session Initiation Protocol (SIP), also known as IETF RFC 2543, defines a distributed architecture for creating multimedia applications, including VoIP.

more information can be seen here http://www.cisco.com/warp/public/cc/techno/tyvdve/sip/prodlit/unpvp_wp.htm

New Member

Re: Skinny, MGCP protocol details description wanted

hello .

are you talking about tcp/udp - ports ?

here we go :

sccp ( skinny ) 2000/tcp

sip ,port 5060/tcp or udp

mgcp , 2427/tcp and 2428/tcp

h323 :

h323hostcallsc 1300/tcp # H323 Host Call Secure

h323hostcallsc 1300/udp # H323 Host Call Secure

h323gatedisc 1718/tcp # h323gatedisc

h323gatedisc 1718/udp # h323gatedisc

h323gatestat 1719/tcp # h323gatestat

h323gatestat 1719/udp # h323gatestat

h323hostcall 1720/tcp # h323hostcall

h323hostcall 1720/udp # h323hostcall

the conversation between two phones runs on udp ports 16384-32767(?)

a good overview of all protocols can be found at

http://www.cisco.com/pcgi-bin/Support/browse/index.pl?i=Technologies&f=1578

hope this helps

gerhard

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