Call manager and 3d party SIP phones -Hospitality

Unanswered Question
Jan 14th, 2009

Cisco Claim That the Call Manager supports SIP phones .

Does this mean we can install Any third party phone such as Seiemens or Alkatel SIP phones with the CM ?

Reason is that in the hospitality industry customer might require a Cordless phone in a guest room and doesnt want to invest in Wireless Access points and Cisco 7925 phones .

Therefore can we put any Cordless phones which support SIP ?

Thank you

Regards

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Jonathan Schulenberg Wed, 01/14/2009 - 07:21

As long as the SIP phone conforms to the respective SIP RFCs, yes. You'll have a more limited feature set than a Cisco phone which uses proprietary SIP extensions to add more functionality than the SIP RFCs provide.

The 3rd-party SIP phones will consume a lot of DLUs (five or six I believe) so make sure to account for this.

On a side note: I would be very apprehensive as the partner if the customer is trying to put multiple wireless phones in without a reliable, controller-based (from Cisco or elsewhere) wireless infrastructure that has been designed to support voice.

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