CH - Swisscom SIP Trunk Registration

[cb83]

Posting here as Swisscom refuse to provide ANY tech support for any PBX not supplied by them.

The guides on the 3CX KB do not match the details that I have been supplied with by Swisscom ( private details in [ ] )

These verified details are as follows:

Your number: +41[NUMBER]
Authentication name: [USER]@swisscom.ch

Domain: voip.swisscom.ch

Outbound Proxy: fs1.voip.swisscom.ch

Password:[PASSWORD]

I have created a Generic SIP Trunk in 3CX and filled in the fields as follows:

Main Trunk Number : +41[NUMBER]
Authentication ID (SIP User ID) : [USER]@swisscom.ch
Authentication password : [PASSWORD]
Optional 3-way authentication ID : BLANK (also tried [PASSWORD])
Type of authentication : Register / Account based (also tried IP Based)
Registrar/Server : voip.swisscom.ch 5060
Outbound Proxy : fs1.voip.swisscom.ch 5060

Log returns :

Call or Registration to Swisscom +41[NUMBER] has failed. sip:[email protected]:5060 replied: 500 Cx Unable To Comply 110200201005004; from IP:138.188.110.4:5060

Firewall is fine. Other SIP Trunks (Sipgate) and SBC / Bridges are working fine.

Can anybody provide any input regarding their experience with Swisscom?

 

[YiannisH_3CX]

Unfortunately I cannot disclose our contacts but we did reach out to Swisscom and got a reply for your case.

Swisscom has informed us that this is a residential product and it's not meant to be added on PBX systems, only to softphone clients that is why they do not provide support. A PBX does not work the same way as a softphone. So this is not a product we support and we cannot provide any further assistance.

 

[rupteur]

Hi,

I just found the solution.

Swisscom is showing:

Auth Name: [user]@swisscom.ch
Domain: voip.swisscom.ch
Outbound proxy: fs1.voip.swisscom.ch
Password: ***************

But there is an error in Swisscom SIP Credentials page. Auth name is only use [user] without @swisscom.ch !!!!

3CX Config
Main Trunk Number: +41
Authentication ID (SIP User ID): +41****
Password: [PASSWORD]
3 way password: [user] <- without @swisscom.ch
registrar: voip.swisscom.ch
proxy: fs1.voip.swisscom.ch

 

[Kevin Attard Compagno]

So, just out of curiosity, was it the customer number in the end?

 

[rupteur]

I just attached a picture =)