Does anyone know if Cisco phones are compatible with Netgear routers?

[dnlmontelongo]

I have a Cisco phone that I've been trying to register and can't seem to connect to a service domain. I done a command prompt on my PC with the command "nslookup %ipaddress%", with my IP address and was shown that my domain is "non-existent". There's not a domain listed on my router so I'm beginning to wonder if my router isn't compatible with the phone. Any help is appreciated.

[Leo Laohoo]

Yes and no.

[dnlmontelongo]

Could you maybe elaborate for me?

[Leo Laohoo]

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@dnlmontelongo wrote:
Could you maybe elaborate for me?

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My answer is based on a very broad question of "will a Cisco work with" and lack of other details.  

I can elaborate further if I get more information: 

1. What is the model of the phone?
2. If the phone is 78xx/88xx, is the phone on Enterprise- or 3PCC/MPP firmware?
3. Is it a Cisco-branded call manager or 3rd party?

[dnlmontelongo]

I apologize for being vague on the phone information. I wasn't sure if anyone could help me. The phone is a cisco branded call manager. The model number of the phone is CP-8841, and the "Active Load" is listed as sip88xx. I'm unsure of whether the phone is on Enterprise or 3PCC/MPP firmware as I can't find it listed anywhere. My place of employment supplied me with this phone and neglected to tell me much about it.

[Leo Laohoo]

Stupid Questions:  What are you planning to do with this phone?  Are you planning to connect it to a Cisco callmanager, non-Cisco-affiliated PBX cloud provider, or non-Cisco-branded call manager (like 3CX/Asterisk)?

[Roger Kallberg]

As outlined in your post here https://community.cisco.com/t5/ip-telephony-and-phones/need-help-with-cisco-phone-error/m-p/4753990#M407690 you should do a name lookup for the SRV record of the service domain, not against your IP address.

Let’s use an example to illustrate, the company name is Acme Inc and the service domain is acme.net, then you should do a nslookup for that domain with this command nslookup acme.net. The SRV record that would be used to register would be _collab-edge._tcl.acme.net. You might need to start nslookup without anything stated after the command and then when it starts set the type of record to SRV with this command type=SRV, once set type in the service domain name. This should result in a response from the DNS server with any SRV record that setup for the domain queried.

[Roger Kallberg]

This video should outline what you need to do on the phone to have it register with MRA. https://m.youtube.com/watch?v=1w_NENQXOqw

[Nithin Eluvathingal]

I assume you are trying to register the phone over MRA. Service Domain probably  it will be the domain part of your email. If this is correct, it will prompt you to enter the username and password which will be your AD user name password.Try this.

2.12.0.0

[Roger Kallberg]

Although it typically is the same as the email domain it does not necessarily have to be so. The company might have used the option to define a voice service domain for their MRA registration. Based on what the OP wrote in the initial post I linked to I believe he/she knows what the service domain used should be.