Comrex ACCESS MultiRack, Product Manual

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ebu3326/sIp modes
A function of placing a SIP-style call is the ability to register with a SIP server. This is a server that exists somewhere
on the network, usually maintained by a service provider. Several free servers exist that can offer registration, like
Onsip.com .
The MultiRack allows EBU3326/SIP calls to be placed or received with or without registration on a SIP server. If
registration is not enabled, connections are made directly to the compatible device by dialing its IP address, just like
in
BRIC Normal mode.
unregIstered mode
Placing a call in Unregistered EBU3326/SIP mode is simple—just build a profile, but instead of choosing BRIC
Normal channel, choose EBU3326/SIP . This will make sure the call is initiated on the proper ports and with the
proper signalling. The majority of system settings relating to EBU3326/SIP relate to Registered mode.
regIstered mode
Registering with a SIP server in EBU3326/SIP mode can have some advantages. When using a SIP server:
• The server can be used to help make connections between codecs through routers.
• The remote codec can be dialed by its SIP URI instead of IP address.
• The SIP server can be used to find codecs on dynamic IP addresses.
sIp serVers
A SIP server exists in a domain. This domain is represented by a web-style URL like sipphone.com or iptel.org . A SIP
server or proxy generally handles IP connections within its domain.
sIp urIs
The SIP server assigns a fixed alphanumeric name to each subscribed account. For example, an Iptel user may be
assigned the user name comrex_user. URIs consist of a SIP user name, followed by a domain, delineated with the @
symbol, like an email address. Comrex’s Iptel user URI would be comrex_user@iptel.org. Comrex devices do not use
the designation “sip:” before a SIP address.
If a connection is made exclusively within a domain, the domain name can be left off. As an example, to make a call
to this codec from another Iptel registered codec, the dialing string can simply be comrex_user (with the domain
being assumed).
regIsterIng wIth A serVer
At a minimum, you will need the following information when registering MultiRack with a SIP server:
• The Internet address of your SIP proxy/server (e.g. proxy01.sipphone.com );
• The username on the SIP account (this is usually the dialing address);