Polycom SpectraLink 8020 Deployment Manual page 26

Deploying SpectraLink 8020/8030
Wireless Telephones
July 2009
Function
Manage handsets
Manage voice packet
delivery by the AP
The process by which the handset is able to get onto the network and register with the SVP Server and
telephony platform is a handshake process which requires multiple steps. Figure 7 is a reference diagram
followed by the step-by-step description of the handset and SVP Server packet handshake.

Handset 1 registers with SVP Server 1
o
Handset 1 always sends its packets to SVP 1

SVP 1 forwards handset 1 packets to the call server or PBX

The call server or PBX sends packets from the telephone this handset is in-call with
to SVP 1

SVP 1 sends packets to the SVP managing the handset 1‟s AP
o
When handset 1 is using AP A (associated with) it receives packets from SVP 1
o
When handset 1 is using AP B it receives packets from SVP 2
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SVP Server 1 (Registration)
Proxy between voice platform and
handset
Send/receives all packets to/from
handset
Considered „home‟ SVP Server
Limit maximum handsets in-call per
AP (static number entered by
administrator)
Receive packets from the „home‟
SVP Server and forward to handset
though currently associated AP
Table 5 – SVP Server Functions
Handset 1
call server or PBX
AP A
SVP Server 1 SVP Server 2
Manages Manages
handsets 1&2; handsets 3;
APs A&D APs B&C
LAN
AP B
Handset 2
Figure 7 – Multiple SVP Servers
26
Best Practices Guide
SVP Server 2
Proxy between voice platform and
handset
Send/receives all packets to/from
handset
Considered „home‟ SVP Server
Limit maximum handsets in-call per
AP (static number entered by
administrator)
Receive packets from the „home‟
SVP Server and forward to handset
though currently associated AP
Handset 3
AP D
AP C