Aastra 67 Series, Administrator'S Manual

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Operational Features
41-001160-04 Rev 02, Release 2.5 5-371
Configuring Operational Features
Configuring the “SIP Join” Feature Using the Configuration Files
You use the following parameters to configure the “SIP Join feature in the
configuration files:
sip join support
Conference Ends and Transfers Remaining Parties
On the IP Phones, a Host can drop from a 3-way conference and let the other two
parties remain connected by pressing a
Xfer key.
Reference
For more information about using the 3-way conference and the Xfer key, see the
IP Phone Model-specific User Guide.
Limitations
The following are limitations of this feature:
• The phone MUST have a Xfer key configured on the phone (programmable
key or softkey)
• Asterisk SLA does not support this feature.
• A “xfer script” can override this feature if a custom application is created and
control is given to the server-side.
• The Caller ID of the dropped Host still displays on the remaining parties’
phones.
Configuration Files
For specific parameters you can set in the configuration files, see Appendix A, the section, “SIP Join Feature
for 3-Way Conference” on page A-102.
Notes:
1. The 3-line LCD display phones (6730i, 6731i, 6751i, 6753i,
9143i) and cordless handsets (CT handsets) do not support scrolling
between lines.
2. The phones MUST have a Xfer key (hardkey, or configured
programmable or softkey) on the phone.