CS1K IP-SIP 1

[reisve]

Hi
I have a customer with a CS1K Rel 7.6 with TDM licences. The customer wants to upgrade to VoIP, and would like to convert the licences to SIP 3rd party, and use Yealink phones.

The vendor is teling me that the 3rd party SIP phones will not have all the features. Can anyone explain me which features will not be available if he buys YeaLink phones?

Thank You

 

[yyrkroon]

you can make call and receive call and that's about it. - all other features will not be availble

 

[gwebster]

Have a look at the SIP Line Gateway NTP to see if there is a list of supported features there. You could also try searching the DevConnect site for an interop document which would show what was tested as working.

If your customer wants to go VoIP, they are better off deploying Avaya UNIStim phones such as the 1100/1200-series. The functionality offered on those will be much closer to what they are used to on a digital phone.

 

[reisve]

Thank You Guys

 

[phonebits]

yyrkroon is right on the money. SIP endpoints will have basically as many features as a single line analog phone, and in some way fewer depending on how the yealink phones implemented things like music on hold and 3 party conferencing. Definitely go with UNIstim, they'll do everything the TDM phones could.

 

[reisve]

UNIstim???

What is that?

 

[reisve]

But if on the SIP phones we dial the the FFC, don't they work?

 

[phonebits]

UNIstim is the Nortel VoIP endpoint protocol. It's basically the function of the digital phones, emulated over IP.

Anything you can program on a key for a digital set, you can program on an IP phone. 99.999% of features work exactly the same as they do on a digital phone. The 1120/1140/1150 series phones are very good quality and affordable both refurbished and new from Avaya.

You won't have a very good experience with 3rd party SIP devices as desk endpoints. SIP is not as universal as it's billed to be, and features are likely to be very poorly integrated. You will lose things like BLF capability, shared line appearances, ring again and things like transferring are likely not going to work the way you expect them to.

Those 3rd party licenses were intended for things like ATAs for faxes, SIP door callboxes and paging systems.

 

[reisve]

But will the tirth party SIP phones work with the FFC codes?

 

[phonebits]

If you're seriously considering using 3rd party SIP phones with a CS1000 after the information listed, I'm not sure how competent you are in your job. Yes, the FFC codes will work for limited feature use. No, users should not be using FFC codes to perform functions like it's 1975 on an all analog PBX. Anything FFC based would be an on-screen softkey on a real Nortel phone, complete with visual prompting of feature operation. FFCs were made for occasionally doing something on a single line phone in a lobby or doorway, not people sitting at their desks.

Why half ass it though? Either use the CS1000 the way it was meant to be used or rip it out and put something else in.

 

[reisve]

It is not a competency in my job issue. It is the customer money issue.
Tirth party SIP phones are cheap then AVAYA IP phones

 

[phonebits]

The cost of the 3rd party SIP licenses is far greater than the normal IP user licenses. The Nortel IP phones have 3 generations available that will all work, all of them significantly cheaper refurbished than any brand new SIP phone. You can get Nortel IP phones for $40-50each if you know where to look. Get pricing for Nortel i2002 or i2004 phones, and also for 1120E or 1140E phones.

Giving the customer the option of using yealink phones is going to cost them more money in service visits, and still leave them with a phone system that is frustrating and basically unusable.

 

[KCFLHRC]

The only thing I see that will be advantageous to your customer by buying SIP phones is that they will be able to use them on their next phone system hopefully.

 

[reisve]

The customer is not in USA, or Europe, so the prices and availability are not what you guys are used to. The Customer is in West Africa. The Licensing for third party and the YeaLink phones combined are cheaper then the combination of the IP licensing and the AVAYA SIP phones. And they are readly available in the country. No importation issues

 

[KCFLHRC]

You will need a signal server also if you don't already have one as well as the network to support it.

 

[reisve]

this is at proposal sage yet. I proposed the SS and the conversion from TDM to SIP, plus the SIP phones.
They have the infrastructure (cabling, and Switches with PoE and QoS. They want a VoIP PBX badly. The most they will get from the PBX is the Status of having an IP PBX. Now you can imagine...

 

[KCFLHRC]

I find it amusing that customers are wanting VOIP so badly but then you ask them why and they have no idea why, other than that is the popular thing now. I work for a large Telco in the US. We have our Hosted VOIP Platform that they are pushing badly. I had a 20 phone cut on Friday. Everything went fine until mid morning, when the whole VOIP platform started having issues, not just this customer, but all customers nationwide. I know you aren't proposing Hosted, however, a lot of the same issues can come up. You lose a data switch and not only do you lose the computer you lose the phone also. It would appear that the days of reliable phone service have gone by the wayside. Used to be you could always pick up your desk phone and call the computer guys to come fix the computer, now they come to fix both. Now you have to reboot your phone and computer. It's actually quite silly how unreliable this new stuff is. But people accept it. Just like their crappy cell phone service.

 

[reisve]

Here the big thing is Cisco. This customer just can't afford to buy one, so he upgrades the CS1K

 

[mikeyb123]

asterisk??

It's not getting any smarter out there. You have to come to terms with stupidity, and make it work for you.

 

[reisve]

Just got an email from the vendor. They made tests with a YeaLink. using FFC and according to them, all codes work