Chapter 6 SPA9000 Field Reference
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| Field | Description | |
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| XFER Bridge Mode | Instructs the SPA9000 how to handle call transferring of an external caller to another | |
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| external number by a client station. This parameter was added in Release 5.1. | |
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| The normal way of performing this operation is for the SPA9000 to send a SIP REFER | |
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| method to the calling device to let it contact the transfer target directly. The SPA9000 then | |
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| drops out of the call completely. This requires the calling device (the transferee) and the | |
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| target device to understand the SIP signaling involved and the operation permitted by the | |
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| underlying service providers. Note that the call legs with transferee and the transfer target | |
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| might be with different ITSP. The SPA400, for instance, cannot handle this operation. | |
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| With bridging, the SPA9000 maintains two separate call legs throughout the call: one with | |
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| the transferred call and one with the transfer target. The two call peers connect only with | |
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| the SPA9000, while the SPA9000 acts as a proxy for the RTP packets exchanged between | |
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| the two parties. | |
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| This parameter has three possible values: | |
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| • none | |
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| • all | |
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| • all except same | |
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| interfaces | |
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| Linksys SPA9000 Administrator Guide |
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| Document Version 3.01 |
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