Cisco Call Manager Express, UNITY and VONAGE integration

Posts: 2257 · Posted: Tue Nov 08, 2005 8:17 am Post subject:

no1lanman wrote:

This is very due able. I was able to take my existing Voip solution at the house to include; Cisco router w/FXO, Cisco inline pwr switch, Call Manager 3.3(4), Cisco PAP2, (3) 7960’s, (4) 7940’s, and my personal favorite (1) 7970, and successfully make calls from my Voip phones thru the Call Manager and out my Vonage PAP2 using h.323. I am still tweaking the config but it works like a champ. More to follow…

WOW!

If you have any spare routers you want to get rid of, contact me, OK? (grin)

Posts: 1 · New Forum Member Joined: Nov 06, 2005 Posts: 1

Hi, I've got the following setup working with one caveat:

Cable modem -- Vonage RTP 300 -- Panasonic cordless phone system
|-- Linksys WRT54G -- Network printer
| . |-- wireless connections
|
|-- Cisco 831 router -- IP phone (7960) -- laptop

It's all working nicely with one caveat. There's no way to implement the required QoS on the Vonage router to distinguish the 7960 Voip traffic from the data traffic coming from the laptop, since it's all in an IPSEC tunnel built by the 831. The Vonage router has a terribly simple QoS config interface, with a few (5) canned protocols available, and three customizeable rules based soley on TCP port. The manual for the RTP300 shows an interface based on IP address and ports on both sides of the connection, but even that isn't good enough to solve my problem.

What I need (I think) is a router located first in line that supports QoS based on DSCP / TOS bits, since I'm pretty sure that the IPSEC tunnel built by the 831 copies these bits to the added headers (the V3PN technology from Cisco). Using these bits, the first-in-line router could give priority to the IPSEC packets with the "ef" marking.

Does anyone know if the svesoft firmware for the WRT54G has QoS that can be applied based on precedence bits?

Anyone have any other ideas? I was also considering using packet length to try to distinguish the Voip from the data inside the IPSEC tunnel.

Anyone have the firmware for the RTP300 that matches what's in my manual? (includes IP addresses & masks on both sides, port ranges, packet length ranges, protocol, and physical port settings to match the traffic in a QoS rule)

(My firmware on the RTP300 is 1.00.55.)

Thanks in advance,

Russell Byrne