Multisite call routing with remote users / VPN's

[pfp]

I'm trying to figure out how calls are being routed in a particular circumstance. I've attached a simple diagram showing how the network is configured.

A call comes into a switch at Site B for any one of the home users. Does the call go from Site B to Site A then to the home user or does it go directly from Site B to the home user? The only reason I question this is becasue home users phones are assigned to Site A.

[Jlorenz]

I'm trying to figure out how calls are being routed in a particular circumstance. I've attached a simple diagram showing how the network is configured.

A call comes into a switch at Site B for any one of the home users. Does the call go from Site B to Site A then to the home user or does it go directly from Site B to the home user? The only reason I question this is becasue home users phones are assigned to Site A.

When You say Home User I assume your reffering to Site A head quarters, is that right?

If I understand you correctly your stating
Site B gets an Incoming call for a User who is homed on Site A

You also state that they are homed on HQ

In your setup "If I understand it" If a call is Presented on a Local Trunk on Site B
and the User for that call is on Site B, But home to Site A

Is the SG the User Assigned to assigned to Site A or B (Very important question)


While I am waiting for an answer

Each SG at each site will carry the info need to route calls to a particular ext in the system. If a Call is presented to a local trunk at site B and the user is on Site A assigned to a SG on Site A, then call is directed from the Incoing SG on B to Site A SG to the user all call handling is established by the SG's. Unless it is ext to ext then it is peer to peer.

[pfp]

A call comes into a trunk on a switch in Site B. The call is for home user 1. Home user 1 has their phone assigned to a switch at site A.

Site B can talk directly to home user 1 and Home user 1 can talk directly to Site B and this is what i think is happening in this case. The part that is getting me a bit confused is whether Site A is involved at all since home user 1's phone is assigned to a switch in that site.

[Jlorenz]

A call comes into a trunk on a switch in Site B. The call is for home user 1. Home user 1 has their phone assigned to a switch at site A.

Site B can talk directly to home user 1 and Home user 1 can talk directly to Site B and this is what i think is happening in this case. The part that is getting me a bit confused is whether Site A is involved at all since home user 1's phone is assigned to a switch in that site.

Yes site a and b are involved

A call comes into a trunk on a switch in Site B. The call is for home user 1. Home user 1 has their phone assigned to a switch at site A

The call is oringinating from an incoming call on Site B's SG

the Call is presented to the User on Site B SG assigned to A user Assigned to A

Site B Sg and Site A SG or keeping tabs of this call together, the Call is handed to the User from SIte A's SG

I hope that clears it up

[pfp]

Yes site a and b are involved



The call is oringinating from an incoming call on Site B's SG

the Call is presented to the User on Site B SG assigned to A user Assigned to A

Site B Sg and Site A SG or keeping tabs of this call together, the Call is handed to the User from SIte A's SG

I hope that clears it up

Does this mean the voice part of the call is going from Site B to Site A then to User 1 (essentially going over 2 VPN connections)?

[Jlorenz]

Does this mean the voice part of the call is going from Site B to Site A then to User 1 (essentially going over 2 VPN connections)?

No only 1 that would be between site a & b

If Site B takes the incoming PSTN call, it moves across the WAN (Aka Site B to A) call is connected to Site A User

Voice path is created between Site B and Site A only.

Unless you not describing it correctly, or I am not understanding you issue.

I have to run for a bit, I will check back in later, and read through your initial ? again

[pfp]

No only 1 that would be between site a & b

If Site B takes the incoming PSTN call, it moves across the WAN (Aka Site B to A) call is connected to Site A User

Voice path is created between Site B and Site A only.

Unless you not describing it correctly, or I am not understanding you issue.

I have to run for a bit, I will check back in later, and read through your initial ? again

This can't be right. Neither the user nor the phone are physically at Site A. Perhaps I didn't describe it well enough. Home users 1-3 could be thought of as sites C- F except they are sites without SG switches, just a single phone, plus they are not "sites" within the Shoretel software.

[Jlorenz]

This can't be right. Neither the user nor the phone are physically at Site A. Perhaps I didn't describe it well enough. Home users 1-3 could be thought of as sites C- F except they are sites without SG switches, just a single phone, plus they are not "sites" within the Shoretel software.

Then I have no idea what you are trying to explain

I believe I understand now what the confusion is

In the scenario you painted in your first post Simply put is

Site A = headquarters
Site B = Remote Site

Home user A = Remote ext connected VPN to Remote "Home User"
(User is based at Site A (HQ) has VPN to Home

Home user B = Remote ext connected VPN to Remote "Home User"
(User is based at Site A (HQ) has VPN to Home

Site A and Site B are WAN/VPN

Call comes into Site B PSTN for Home user A

Call flow will come through Site B to Site A then to Home user, So the call will be traversing the WAN/VPN from Site B to Site A
It will then Travers the VPN to Home User A

This is the way you have designed it, Voice Path will be From PSTN to Site B to Site A to Home User A

Call Control will be from Site B to Site A

IP Phne Call Control will be through Home User A IP to Site A SG

I hope that clarifies the question you have

Are you experiencing an issue?

[pfp]

This is all accurate however I would add that "Home Users" not only have a VPN to Site A but they also have a VPN to Site B.

I was having an issue where the home user couldn't hear the caller but the caller could hear the home user. It got me thinking about how the call was being routed. I eventually got the problem fixed - there was an issue with the VPN between Site B and the "Home User"

Thank you

[Jlorenz]

This is all accurate however I would add that "Home Users" not only have a VPN to Site A but they also have a VPN to Site B.

I was having an issue where the home user couldn't hear the caller but the caller could hear the home user. It got me thinking about how the call was being routed. I eventually got the problem fixed - there was an issue with the VPN between Site B and the "Home User"

Thank you

I can guarantee you the one way voice path is not the call routing over the users 2nd VPN, "BUT" this does not eliminate this can be the issue as you discovered. 99.9999% of the time One way Voice path is caused by configuration.

Glad you got it fixed and I hope I answered your question