[cisco-voip] Max ephones?

[Sean Watkins]

Hi,

I've got a 3640 router which I'm experimenting with - Ciscos documents say
it supports a maximum of 48 ephones, but the cli reports 52.

Router(config)#telephony-service 
Router(config-telephony)#max
Router(config-telephony)#max-?
max-conferences  max-dn  max-ephones  max-redirect

Router(config-telephony)#max-ep
Router(config-telephony)#max-ephones ?
  <1-52>  Maximum phones to support

Router(config-telephony)#max-ephones 

And it appears to support 72 ephone tags? 

Router(config)#ephone ?
  <1-72>  Ethernet phone tag

Router(config)#ephone 

But it only lets me configure 52. Is there any hidden command etc to get 72?
I have a application which requires 58 phones and its sad I can't get
another 6 phones out of an otherwise beefy router?

Sean Watkins