Mitel 3300 ->SIP-> Nortel CS1K 1

[PBQ]

Howdy,

I'm faced with the challenge of integrating two office locations. One runs a Mitel 3300 on S/W 7.5 platform, the second runs Nortel CS1000 Rls 5. I have been hunting for hours now, but can't seem to find any new developments with regards to interoperability between systems. Forklifting either is not an option and so I suppose I have either the path of Q.SIG and pay fees for extra infrastructure (T1) or explore the path of SIP. Advice, comments... slap in the face?

Cheers.

 

[TheMitelGuy]

SIP is not possible.

Q.SIG is your only option via T1.

 

[M1tel]

Cannot be done they are not compatible and niether is on each other compatability list

 

[PBQ]

That settles it then, thanks very much for the responses.
Cheers

 

[lmb2]

I wouldn't give up so quickly...Cisco's Call Manager platform was not on each others compatibility list either but we did it.

First I contacted my Vendor and asked if Mitel would be interested in us doing the field testing for one free SIP trunk. For that one SIP trunk I would document our testing and give it to them. Our vendor took our request to Mitel.

Mitel gave us a SIP trunk. I chated with a Cisco tech on line. Contacted the vendor for the Call Manager System and set up the connection; documenting everything. The connection setup was easy, the testing was all good and we purchased an additional 15 SIP trunks.

We are connected from a Mitel system in Nebraska to a Cisco Call Manager system in New York. The only issue we came up with afterward was one-way audio on our Teleworker extensions. I added port forwarding to the Teleworker and its all good. Four digit dialing over thousands of miles.

Don't give up...where there's a will, there's a way.

 

[PBQ]

You have a very strong point and I agree. I'm stuck under the gun though and will be taking your recommendation seriously to persue this activity after we have the fire out as a second phase approach. Great insight. Thanks

 

[TheMitelGuy]

Nortel does not support generic SIP (period).

 

[M1tel]

I worked on this for 3 weeks. I am a Mitel Senior applications specialist with many Sip rollouts. I had a Nortel Engineer for the 3 weeks. I does not work if you need to integrate the both use QSIG.

 

[miturn]

It really is too bad that Nortel doesn't play nice in the SIP sandbox with Mitel.

lmb2 does have some good advice for users looking to connect Mitel to another platform of unknown compatibility. Those who are willing to go the extra mile to find out if something heretofore unknown will work are an asset and will continue to help broaden Mitel's horizon's.

 

[MitelTechno]

Guys,

why not using a T1 or a E1 to an ATA device and then use SIP between the two ATAs. you will need a soft swich or some sort.

There are plenty of them in the market. this will make them work fine.

 

[turtlefrogsnake]

When you connnected the Mitel with the Cisco with SIP did you get name and number delivery? Both directions?

 

[lmb2]

Yes we did.

 

[lmb2]

Yes we still do.

 

[RynoTek]

Hi LMB2,

With the Cisco to Mitel SIP trunk was it directly into CM or did you use another device between the two, like a IP-IP Gateway or Cube gateway. What version of CallManager where you using and what code on the 3300?

Thanks Ryan

 

[lmb2]

No gateway that specifically interfaces the SIP trunk(s). The voice traffic uses the usual network infrastucture that the data traffic uses to reach the internet.

Both systems are on seperate VLANs from the data side so have dedicated network switches to handle the network traffic as it comes off the pbx; then it's routed through the overall switch fabric to the outside world.

Call Manager version 5
3300 version 7.1.3.4_2

Cisco licenses SIP as an option with a 400 connection limitation. Mitel licenses SIP on a per trunk (1 to 1 simultaneous call) basis.