[asterisk-users] Re: Correct latency values in "sip show peers"

Eric "ManxPower" Wieling eric at fnords.org
Wed Apr 4 07:57:19 MST 2007

Tomislav Parcina wrote:
> Rolz wrote:
>> I was wondering if anyone knows how accurate the values are when you do a
>> "sip show peers" from the CLI.
>> My configuration is:
>> Asterisk box ( -> gigabit switch <- PC running x-lite 
>> (
>> the CLI reports 101 ms delay
>> however, ping is showing <1ms delay
>> Where is the extra 100ms coming from? The softphone response?
> I'm not sure, but I think that ping isn't OSI ISO Layer 7, while 
> softphone is. So, this 100 ms can come from there.

The times shown are the time to get a response to a SIP OPTIONS packet 
sent to the phone, not the time to get a response from an ICMP ECHO 
(ping) packet.

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