Aastra M720 - Sip Phones Dual Homing

AMT/PTD/TR/0001/3/7/EN Installation Manual for digital sets - IP sets - SIP sets
Page 8-54 05/2008 SIP PHONEs 480i, 9112i and 9133i
8.12 SIP phones dual homing
Phones 9133i and 480i have several line keys. Each key may be configured for connection to a
specific SIP access point, using the configuration file @MAC.cfg.
On a multi-site network, it is possible to configure an SIP access point per site.
An SIP phone registered on 2 iPBXs via 2 SIP access points may be called on its 2
nd
line (via call
rerouting) in case of unavailability of the SIP access point or the iPBX of the first line.
Caution: Phone 9112i is a single-line phone and does not support this configuration.
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