CHAPTER20 SIP Definitions
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
â– [2] GIN = The device performs registration for legacy
PBXs, using Global Identification Number (GIN). For
more information, see Single Registration for Multiple
Phone Numbers using GIN.
Note:
â– Gateway application: To enable registration, you also
need to set the 'Registration Mode' parameter to Per
Account in the Trunk Group Settings table (see
Configuring Trunk Group Settings).
â– Account registration is not affected by the
IsRegisterNeeded parameter.
'Registrar Stickiness'
registrar-stickiness
[Account_RegistrarStickiness]
Enables the Registrar Stickiness feature.
â– [0] Disable = (Default) Disables the Registrar
Stickiness feature. After a successful initial registration
of the Account with a registrar (IP address), whenever
the device receives a SIP request or registration
refresh, the device sends the request to whichever IP
address is the currently working registrar. In other
words, there is no binding to a specific IP address in the
Proxy Set and at any given time, requests may be sent
to a different IP address, whichever is the working one.
In the case of proxy load-balancing, there is no certainty
as to which IP address in the Proxy Set the request is
routed.
â– [1] Enable = Enables the Register Stickiness feature.
The device always routes SIP requests of a registered
Account to the same registrar server to where the last
successful REGISTER request was routed. In other
words, once initial registration of the Account to one of
the IP addresses in the Proxy Set (associated with the
Account's Serving IP Group) is successful (i.e., 200
OK), binding ("stickiness") occurs to this specific
address (registrar). All future SIP requests (e.g.,
INVITEs, SUBSCRIBEs and REGISTER refreshes)
whose source and destination match the Account are
sent to this registrar only. This applies until the registrar
is unreachable or registration refresh fails, for whatever
reason
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