Configure Yealink VOIP phone with VF SIP landline

[Quarryman]

Our Vodafone landland / broadband contract for a small business was up for renewal last month, which I renewed with a VOIP / Digital Voice service. I subsequently found out that the Vodafone call forwarding / divert feature which was part of our old contract was not available with VOIP / Digital Voice. Vodafone did advise that we could purchase a new VOIP handset, and use this to enable call forwarding / divert.

After some research I purchased a Yealink W70B Base Station (which connects to the Vodafone router via ethernet cable) and a Yealink W73P handset. Vodafone also supplied SIP credentials, in the following format:

Username: voi0017xxxxx
Password: xxxxxxxxxxxxxxx
SIP proxy: xbn.xx.bbvoice.vodafone.co.uk
SIP registrar: resvoip.vodafone.co.uk
SIP URI: voi0017xxxxx

In addition, Vodafone also supplied a static IP address.

My understanding is that the admin page on the W70B should be accessed, and the above credentials entered. However, to date I have been unable to get the phone to register. Our old phone does work when connected via a VOIP adapter into the back to the router, but this does not support call forwarding. We really want to get the Yealink phone to work; has anyone managed to install a similar set up? Also, what value should be used for "SIP Server" within the W70B admin page?

Many thanks

[Ripshod]

Just get yourself a Grandstream HT801 and a dect phone, and retain the digital voice service.

Porting your landline may likely automatically cancel your broadband contract, for which you'll incur an early termination fee. 

[vettrainos]

I also use the Yealink W70B base station and have done with 2 separate VoIP telephone numbers for some time now. My Vodafone landline was switched from PSTN to VoIP (Digital Voice) a couple of weeks ago. I managed to obtain the SIP details for my Digital Voice account from Vodafone without any difficulty. However, I have been unable to get my W70B to register my Vodafone digital voice number.

From tests, I have found that the registrar and proxy domain names provided to me by Vodafone for my Digital Voice service cannot be resolved by Vodafone DNS servers over my Vodafone broadband connection. From what I understand, and the configurations I have seen for known to be working devices (e.g. Grandstream HT801), resolution of the Vodafone digital voice proxy and registrar domains by the Vodafone DNS servers is a pre-requisite for any of these to work.

I have now progressed this through the Vodafone Digital Voice support, who have now passed the issue onto Vodafone Broadband support - who I am told I will hear from within 48 hours. If anyone has had any fortune in getting unresolvable Vodafone Registrar and Proxy server domains fixed - please post.

[Cynric]

@vettrainos Have a look in the link below, best to start at the last page and work backwards.

https://forum.vodafone.co.uk/t5/Landline/Landline-phone-with-own-router-on-FTTP/td-p/2709457/page/58

[vettrainos]

I have already worked through that thread. It identifies configurations that would require operational resolution of the Vodafone Domain Names of the servers assigned to the Digital Voice account. But, the Broadband Service provided to me by Vodafone cannot resolve the domain names (using Vodafone DNS 90.255.255.90, 90.255.255.91 and 90.255.255.255) identifying the VoIP registrar and proxy severs assigned to my Vodafone Digital Voice account.

[Ripshod]

Yealink won't work.

Does the normal phone connection work with the vodafone router? If yes then the domains are resolving fine on the vodafone dns. 

[vettrainos]

Reply provided below identifying lack of DNS resolution (hit wrong reply button 😒). I suspect the THG3000 (based upon its' serial number) is provided with the already resolved Registrar and Proxy server IP addresses in addition to the Digital Voice username and password to facilitate connection to the service.

[vettrainos]

Same result without the typo in specifying the DNS entry type 😉:

---

@Ripshod wrote:

Yealink won't work.

Does the normal phone connection work with the vodafone router? If yes then the domains are resolving fine on the vodafone dns. 

---

[vettrainos]

From Enterprise Linux Server within my sub-net connected to the internet via Vodafone Broadband: 

 No resolution of Vodafone Digital Voice SIP Registrar by Vodafone DNS Server over Vodafone broadband connection.

[Ripshod]

Honestly, you're just wasting your time. There's settings that need changing that you just can't access on the Yealink.

However, if you have a Linux server and run asterisk you would be able to get any device working, even your mobile. 

[Cynric]

@vettrainos  @Ripshod  There's a linux build dedicated to Asterisk called FreePBX at www.freepbx.org