Grandstream Networks UCM6 Series Service Manual page 13

• A, B, and C are SIP extensions registered to the UCM.
• 1200 is C's extension number.
• The seamless transfer feature code is enabled.
• *44 is the configured feature code to initiate a seamless transfer.
The service can be used as such:
1. A dials B.
2. B rings and answers the call.
3. A and B can hear and talk to each other.
4. A dials *441200.
5. C rings.
6. The call between A and B is still ongoing.
7. C answers the call.
8. A is disconnected from the call.
9. B and C can hear and talk to each other.
Miscellaneous
UCM6xxx Series - Service Guide
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