Cisco Emergency Responder Administration Guide, Release 15 and SUs - Plan for Cisco Emergency Responder

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cer/15/english/administration/guide/cer0_b_cisco-emergency-responder-administration-guide-15/cer0_b_cisco-emergency-responder-administration-guide-1401_chapter_01.html

Published

2026-03-17

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• In a conventional deployment the administrator exports ALI definitions from Emergency Responder and sends them to the service provider, who ensures the MSAG is updated. in context
• Emergency Responder reuses an ERL's ELINs when calls outnumber them: with two ELINs and three emergency calls in three hours, the first ELIN is used twice, so a PSAP callback can reach the wrong caller. in context
• After installation, Emergency Responder runs in a 90-day Smart Licensing evaluation period with all features available. in context
• When the evaluation period expires, the Emergency Responder Phone Tracking Engine stops until the product registers with Cisco Smart Software Manager or a Smart Software Manager satellite. in context
• Smart Licensing registration is done from Cisco ER Administration at System > License Manager, following the task flow: obtain a product instance registration token, configure transport settings, register with Cisco Smart Software Manager. in context
• Emergency Responder uses a single user license type, and every endpoint capable of making an emergency call (IP phones, analog phones, video endpoints and clients) needs one Emergency Responder User License. in context
• Cisco tells administrators to work with their service provider and local government to find the exact E911 requirements in their area, noting that localities may limit ERL size (its example is no larger than 7000 square feet). in context
• Emergency Responder supports Specific License Reservation, which licenses the product instance without sending usage information, for secure networks. in context
• From Release 15SU2, Call Home is deprecated as a Smart Licensing transport and Smart Transport is the transport mode; direct connection is the default, with HTTP/HTTPS proxy and on-premises satellite as alternatives. in context
• Cisco Emergency Responder routes emergency calls according to the location of the phone that placed the call. in context
• Cisco Emergency Responder tracks phones by switch port (MAC address behind a switch port), IP subnet, wireless access point or manual assignment of a line to an ERL. in context
• The Release 15 administration guide does not state the capacity of an Emergency Responder group itself; it sends readers to the current release notes. in context
• An emergency location identification number (ELIN) is a phone number that routes the emergency call to the local PSAP and that the PSAP can use to call the emergency caller back. in context
• By default Emergency Responder keeps the mapping between the caller's extension and the ELIN used for up to three hours, so that a PSAP callback to the ELIN reaches the caller. in context
• In Cisco Emergency Responder an emergency response location (ERL) defines the area in which an emergency call is made, and Emergency Responder assigns phone locations to ERLs. in context
• Emergency Responder exports ALI data files in NENA formats. in context
• Only one Emergency Responder group can support a given Unified CM cluster, but one Emergency Responder group can support more than one Unified CM cluster. in context
• Emergency Responder can notify configured onsite security users about an emergency call, by phone call, web alert, email and text. in context
• For Emergency Responder to route emergency calls to the local PSAP, the deployment needs a gateway with a PRI or CAMA link to the service provider's network. in context
• Emergency Responder's purpose is to make Unified CM send each emergency call to the PSAP that serves the caller's location. in context
• Emergency Responder is deployed as a redundant pair of servers, one designated Publisher and the other Subscriber. in context
• Emergency Responder decides a phone's ERL using methods in this order of precedence: synthetic phones by MAC address, switch-port tracking, access-point tracking, IP subnet, remote Emergency Responder server group, manually configured phones, and finally the default ERL. in context
• All Unified CM clusters supported by one Emergency Responder cluster must have unique dial plans. in context
• Emergency Responder administrators must export ALI data to the service provider and resubmit it whenever ELIN or location information changes. in context
• In Emergency Responder an ERL is the area from which an emergency call is placed, and an ELIN is a number that routes the call to the local PSAP and that the PSAP can use to call the caller back. in context
• Emergency Responder locates phones in precedence order: synthetic phones, switch port, access point, IP subnet, remote server group, manual line assignment, unlocated phones, then default ERL. in context
• Emergency Responder notifies onsite alert personnel assigned to an ERL by telephone call, web alert, email and text alerts. in context
• Emergency Responder supports test ERLs and synthetic phones, which assign an ERL by MAC address for testing. in context

Cite this source record

APA

WarmTransfer. (2026, March 17). Cisco Emergency Responder Administration Guide, Release 15 and SUs - Plan for Cisco Emergency Responder. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cer-15-admin-planning

BibTeX

@misc{warmtransfer-cisco-cer-15-admin-planning,
  title  = {Cisco Emergency Responder Administration Guide, Release 15 and SUs - Plan for Cisco Emergency Responder},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cer-15-admin-planning},
  note   = {Cisco Systems, accessed 2026-09-24}
}