[cisco-voip] 4006 Switch won't power 7961 phones?

[tennille.spence at gsa.gov]

I just recently discovered that my 7961 phones will not power up from our
4006 switch because they consume twice the power as 7960s and my switchport
are only set to deliver 6.5 watts of inline power. Can the 4006 deliver 13
watts or is it 6.5 watts max a hardware restriction? If I can, are there
other commands I need to issue aside from "set inline power"? I also
included the power environment settings below.

My attempt to update the port to anything above 6.5 watts fails:

> (enable) set port inlinepower 3/12 auto 13000
Failed to set the inline power for port 3/12 to auto with maxWattage 13000

> (enable) show environment power

PS1-Type          PS2-Type          PS3-Type
----------------- ----------------- -----------------
WS-X4008          WS-X4008          WS-X4008

PS1-Status PS2-Status PS3-Status PEM Installed PEM Powered
---------- ---------- ---------- ------------- -----------
ok         ok         ok         yes          yes

Power Budget is : 2 supplies

                    Total (Watts) Drawn (Watts) Remain (Watts)
                    ------------- ------------- --------------
System Power ( 12V)           750           375           375
Inline Power ( 50V)          1660           504          1156

Configured Default Inline Power allocation per port: 6.00 Watts (0.120
Amps)


Mod. Allocated (Admin)  Total    Max H/W Supported   Inline    Threshold
     -----------------  Used    -------------------   Power      Status
     To Mod   to Ports (Oper)   Per Module Per Port  Status
     (Watts)   (Watts) (Watts)    (Watts)   (Watts)
---- -------- -------- -------- ---------- -------- ---------  ----------
2    0.000     81.900   unknown  312.000    6.500    Denied     Ok
3    0.000    163.800  unknown  312.000    6.500     Ok        Ok
4    0.000    151.200  unknown  312.000    6.500    Denied     Ok
5    0.000    107.100  unknown  312.000    6.500     Ok        Ok