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Max User on router c1861

ma.romero
Level 2
Level 2

Hi,

I see in the documentation in this router support a maximun of 12 user or 12 IP phones, but only it has a 8 fast-ethernet port.

I need a switch connected in a port on router in mode trunk to connected the rest of the phones?

If I want to use 15 or more IP phones it is possible? If I do it how before?

Thanks

3 Replies 3

Brandon Buffin
VIP Alumni
VIP Alumni

Yes, you would need another switch to connect the rest of the phones. I believe you can go slightly over the 12 phone limit. For example, on a 2821 you can configure "max-ephones 52" even though the maximum supported is 48.

Hope this helps. If so, please rate the post.

Brandon

Rob Huffman
Hall of Fame
Hall of Fame

Hi Miguel,

The 1861 will work for a very small Branch Offices and can be expanded to(15 phones max) if you need more than 15 then maybe go for a 2801 for expansion purposes (support for 24 phones);

Cisco 1861 Integrated Services Routers

Q. What is the Cisco 1861?

A. The Cisco 1861, which is part of the Cisco 1800 Series Integrated Services Router portfolio, is a unified communications solution targeted at small and medium-sized businesses (SMBs) and enterprise small branch offices. This solution provides voice, data, voicemail, Automated-Attendant, video, and security capabilities while integrating with existing desktop applications such as calendar, e-mail, and customer relationship management (CRM) programs. This platform takes full advantage of business-class, proven unified communications technologies and supports flexible deployment models based on your needs-a wide array of IP phones, public switched telephone network (PSTN) interfaces, and Internet connectivity.

Core components include the following:

• Cisco Unified Communications Manager Express (CME) or Cisco Unified Survivable Remote Site Telephony (SRST) for call processing

This solution is targeted at customers interested in deploying a converged IP telephony solution for up to 15 IP phones.Provides flexibility and investment protection by allowing the optional upgrade of the default 8-user CME/SRST license to 15 users.License-based upgrades are now orderable and enable customers to upgrade the 8-user version of the Cisco 1861 Integrated Services Router to 15 users.Cisco IOS Release 12.4(22)T or later is required for upgrade from 8-to-15 users

Q. How many Fast Ethernet ports are on the Cisco 1861?

A. The Cisco 1861 has 8 PoE switch ports, which are all Fast Ethernet ports. In addition, there are 2 Fast Ethernet ports onboard, one of which is connected directly to the CPU and so is a routed port, whereas the second is a switch uplink port connected to the onboard 8 PoE switch ports. This second Fast Ethernet port may be used as an expansion port to an external switch if more PoE switch ports are required.

From these good docs;

http://www.cisco.com/en/US/prod/collateral/routers/ps5853/ps8321/prod_qas0900aecd806c4def.html

http://www.cisco.com/en/US/prod/collateral/routers/ps5853/ps8321/product_data_sheet0900aecd806c4dce.html

Hope this helps!

Rob

EDIT: Brandon, you are too quick for me this morning (as usual ;-)

Thanks rob.huffman.

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