10-15-2007 05:21 AM - edited 03-13-2019 04:31 PM
I am running CME 4.1 on 2811 (c2800nm-spservicesk9-mz.124-11.XJ.bin). I have configured SCCP 7940 phone and x-lite SIP phone. When making a call between SIP to SIP, SIP to SCCP or SCCP to SIP, The RTP stream goes via CME, not dirrectly between phones. Have tried command "media flow-around" under "voice register global" and "voice register pool x" but still not working.
10-15-2007 05:29 AM
Hello,
one thing is that cisco does not officially supports third-party sip phones, so it's good already that it work no matter the media path.
Anyway have you tried with cisco SIP phones? It is quite possible that the media goes cme as well.
10-15-2007 05:57 AM
Thanks, I will set this up in the lab and get a 7905 SIP phone working and see if this has the same problem. here is my config. note: I have removed "media flow-around" command
!
voice service voip
allow-connections sip to sip
signaling forward unconditional
sip
registrar server
!
voice class codec 1
codec preference 1 g711ulaw
!
voice register global
mode cme
source-address 192.168.17.100 port 5060
max-dn 3
max-pool 3
authenticate register
authenticate realm nnn.se
!
voice register dn 1
number 601
!
voice register pool 1
id mac 0011.2586.FBC2
type ATA
number 1 dn 1
voice-class codec 1
username 601 password cisco
!
dial-peer voice 601 voip
destination-pattern 601
session protocol sipv2
session target ipv4:192.168.17.100:5060
dtmf-relay rtp-nte
codec g711ulaw
!
10-17-2007 02:14 AM
I have setup a test in a lab environment. Enabled the "media flow-around" command. I know have Cisco SIP to 3rd party SIP working correctly, with direct RTP stream. However when testing Cisco SCCP and Cisco SIP I get the following: In both cases, SCCP to SIP and from SIP to SCCP the RTP stream goes via CME. Also another problems is introduced when calling from SCCP to SIP, oneway voice (SCCP can hear SIP phone but SIP phone cant hear SCCP)
10-17-2007 03:49 AM
For the one-way voice issue, can you pls upgrade to 12.4(11)XJ4 and try again.
The flow-through method with sccp to sip may be indeed the expected behavior.
10-17-2007 04:20 AM
I will do an upgrade on the 2811, but can you confirm the correct behavior of the RTP stream between SCCP and SIP. thanks
10-18-2007 10:13 PM
I have upgraded from c2800nm-spservicesk9-mz.124-11.XJ.bin to c2800nm-spservicesk9-mz.124-11.XJ4.bin to see if I could fix the oneway voice problem but the problem still remains.
10-19-2007 02:03 AM
Hi,
As I said before, from what I see, that is the normal behavior. Media for SIP to SCCP calls goes through the router.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide