SRST: What counts to "Maximum Ephone-dns or Virtual Ports"

[svogt]

http://www.cisco.com/univercd/cc/td/doc/product/voice/srst/srst33/srs33spc.htm

explains the limits for SRST 3.3:

max-ephones

max-dn

What counts to the max-dn limit?

If a phone has two lines, does this count 2 DNs automatically?

Does an additional dial-peer count as a DN?

What is specified with the term 'virtual port'?

Thanks for clarification.

[Chris Deren]

2 line phone will count as 2 ephone-dn. It's 1:1 ratio for lines:ephone-dn.

Dial-peer is not included in the calculation.

Virtual port is the phone registered in SRTS, the router creates virtual ports (dial-peers) for each device when in SRST mode.

Chris

[svogt]

Hm, still unsure whether the non-dynamic dial-peers count to somehow to the 'Maximum Ephone-dns or Virtual Ports' per platform as provided here:

http://www.cisco.com/univercd/cc/td/doc/product/voice/srst/srst33/srs33spc.htm

Meanwhile it looks like that I can't get to the max number of dynamic dial-peers as stated in the doc above, even if I configure the maximum value via max-dn.

syslog shows

%DIALPEER_DB-3-ADDPEER_MEM_THRESHOLD: Addition of dial-peers limited by available memory

despite there is plenty of free memory in the system...

Anyone with similar experience for SRST 3.2 or 3.3?